chore: align fleet task lineage

Reviewed-on: #109

adapters/postgres/capability_repository.go

@@ -28,6 +28,89 @@ func OpenCapability(ctx context.Context, config ContinuityConfig) (*CapabilityRe
 
 func (r *CapabilityRepository) Close() { r.pool.Close() }
 
+func (r *CapabilityRepository) AdmitCognitive(ctx context.Context, leaseID string, policy capability.AdmissionPolicy, request capability.AdmissionRequest, nowUnixMillis int64) (capability.AdmissionDecision, capability.AdmissionLease, error) {
+	tx, err := r.pool.Begin(ctx)
+	if err != nil {
+		return capability.AdmissionDecision{}, capability.AdmissionLease{}, err
+	}
+	defer func() { _ = tx.Rollback(ctx) }()
+	if leaseID == "" || nowUnixMillis < 1 {
+		return capability.AdmissionDecision{State: capability.AdmissionRejected, Reason: capability.AdmissionReasonInputBudget, PolicyID: policy.ID}, capability.AdmissionLease{}, nil
+	}
+	var existingState string
+	var existingPolicy string
+	err = tx.QueryRow(ctx, `SELECT state, policy_id FROM capability.cognitive_admission_leases WHERE lease_id=$1`, leaseID).Scan(&existingState, &existingPolicy)
+	if err == nil {
+		if existingState == "ACTIVE" {
+			return capability.AdmissionDecision{State: capability.AdmissionAdmitted, Reason: capability.AdmissionReasonNone, PolicyID: existingPolicy}, capability.AdmissionLease{ID: leaseID, PolicyID: existingPolicy}, tx.Commit(ctx)
+		}
+		return capability.AdmissionDecision{State: capability.AdmissionRejected, Reason: capability.AdmissionReasonConcurrency, PolicyID: existingPolicy}, capability.AdmissionLease{}, tx.Commit(ctx)
+	}
+	if !errors.Is(err, pgx.ErrNoRows) {
+		return capability.AdmissionDecision{}, capability.AdmissionLease{}, err
+	}
+	windowStart := nowUnixMillis - 60*60*1000
+	_, err = tx.Exec(ctx, `INSERT INTO capability.cognitive_admission_counters(policy_id,window_start_unix_millis,accepted_count,concurrent_count,updated_at_unix_millis) VALUES($1,$2,0,0,$3) ON CONFLICT(policy_id) DO NOTHING`, policy.ID, windowStart, nowUnixMillis)
+	if err != nil {
+		return capability.AdmissionDecision{}, capability.AdmissionLease{}, err
+	}
+	var storedWindow int64
+	var accepted, concurrent int
+	if err = tx.QueryRow(ctx, `SELECT window_start_unix_millis,accepted_count,concurrent_count FROM capability.cognitive_admission_counters WHERE policy_id=$1 FOR UPDATE`, policy.ID).Scan(&storedWindow, &accepted, &concurrent); err != nil {
+		return capability.AdmissionDecision{}, capability.AdmissionLease{}, err
+	}
+	if nowUnixMillis-storedWindow >= 60*60*1000 {
+		storedWindow, accepted = windowStart, 0
+	}
+	var expired int64
+	if err = tx.QueryRow(ctx, `WITH expired AS (UPDATE capability.cognitive_admission_leases SET state='EXPIRED' WHERE policy_id=$1 AND state='ACTIVE' AND expires_at_unix_millis <= $2 RETURNING lease_id) SELECT count(*) FROM expired`, policy.ID, nowUnixMillis).Scan(&expired); err != nil {
+		return capability.AdmissionDecision{}, capability.AdmissionLease{}, err
+	}
+	concurrent -= int(expired)
+	if concurrent < 0 {
+		concurrent = 0
+	}
+	decision := capability.Admit(request, policy, capability.AdmissionCounters{Concurrent: concurrent, AcceptedLastHour: accepted}, nowUnixMillis)
+	if decision.State != capability.AdmissionAdmitted {
+		if _, err = tx.Exec(ctx, `UPDATE capability.cognitive_admission_counters SET window_start_unix_millis=$2,accepted_count=$3,concurrent_count=$4,updated_at_unix_millis=$5 WHERE policy_id=$1`, policy.ID, storedWindow, accepted, concurrent, nowUnixMillis); err != nil {
+			return capability.AdmissionDecision{}, capability.AdmissionLease{}, err
+		}
+		return decision, capability.AdmissionLease{}, tx.Commit(ctx)
+	}
+	expires := nowUnixMillis + 60*1000
+	if request.DeadlineMillis > nowUnixMillis && request.DeadlineMillis < expires {
+		expires = request.DeadlineMillis
+	}
+	if _, err = tx.Exec(ctx, `UPDATE capability.cognitive_admission_counters SET window_start_unix_millis=$2,accepted_count=$3,concurrent_count=$4,updated_at_unix_millis=$5 WHERE policy_id=$1`, policy.ID, storedWindow, accepted+1, concurrent+1, nowUnixMillis); err != nil {
+		return capability.AdmissionDecision{}, capability.AdmissionLease{}, err
+	}
+	if _, err = tx.Exec(ctx, `INSERT INTO capability.cognitive_admission_leases(lease_id,policy_id,state,expires_at_unix_millis,created_at_unix_millis) VALUES($1,$2,'ACTIVE',$3,$4)`, leaseID, policy.ID, expires, nowUnixMillis); err != nil {
+		return capability.AdmissionDecision{}, capability.AdmissionLease{}, err
+	}
+	return decision, capability.AdmissionLease{ID: leaseID, PolicyID: policy.ID}, tx.Commit(ctx)
+}
+
+func (r *CapabilityRepository) ReleaseCognitiveAdmission(ctx context.Context, lease capability.AdmissionLease, nowUnixMillis int64) error {
+	tx, err := r.pool.Begin(ctx)
+	if err != nil {
+		return err
+	}
+	defer func() { _ = tx.Rollback(ctx) }()
+	var policyID string
+	err = tx.QueryRow(ctx, `UPDATE capability.cognitive_admission_leases SET state='RELEASED' WHERE lease_id=$1 AND state='ACTIVE' RETURNING policy_id`, lease.ID).Scan(&policyID)
+	if errors.Is(err, pgx.ErrNoRows) {
+		return tx.Commit(ctx)
+	}
+	if err != nil {
+		return err
+	}
+	_, err = tx.Exec(ctx, `UPDATE capability.cognitive_admission_counters SET concurrent_count=GREATEST(0,concurrent_count-1),updated_at_unix_millis=$2 WHERE policy_id=$1`, policyID, nowUnixMillis)
+	if err != nil {
+		return err
+	}
+	return tx.Commit(ctx)
+}
+
 func (r *CapabilityRepository) SaveHealth(ctx context.Context, health capability.Health) error {
 	_, err := r.pool.Exec(ctx, `INSERT INTO capability.health (capability_id, state, reason, revision, semantic_version, observed_at_unix_millis) VALUES ($1,$2,$3,$4,$5,$6) ON CONFLICT (capability_id) DO UPDATE SET state=EXCLUDED.state, reason=EXCLUDED.reason, revision=EXCLUDED.revision, semantic_version=EXCLUDED.semantic_version, observed_at_unix_millis=EXCLUDED.observed_at_unix_millis WHERE capability.health.revision < EXCLUDED.revision`, health.CapabilityID, health.State, health.Reason, health.Revision, health.SemanticVersion, health.ObservedAtUnixMillis)
 	return err

adapters/postgres/epistemics_repository.go

@@ -21,6 +21,10 @@ func OpenEpistemics(ctx context.Context, config ContinuityConfig) (*EpistemicsRe
 
 func (r *EpistemicsRepository) Close() { r.pool.Close() }
 
+func (r *EpistemicsRepository) Ping(ctx context.Context) error {
+	return r.pool.Ping(ctx)
+}
+
 func (r *EpistemicsRepository) SaveSystemExpectation(ctx context.Context, value epistemics.SystemExpectation) error {
 	_, err := r.pool.Exec(ctx, `INSERT INTO epistemics.system_expectations (
 		expectation_id, original_intent_id, source_utterance_id, expected_outcome, expected_effect,
@@ -161,3 +165,21 @@ func (r *EpistemicsRepository) SaveReflectionCandidate(ctx context.Context, valu
 		value.Summary, value.EvidenceRefs, value.RequiresCognition, value.RecordedAtUnixMillis, value.Revision)
 	return err
 }
+
+func (r *EpistemicsRepository) SaveTruthBundle(ctx context.Context, value epistemics.TruthBundle, recordedAtUnixMillis int64) error {
+	if value.Source.ID == "" || value.Snapshot.ID == "" || value.Excerpt.ID == "" || value.Claim.ID == "" || value.Belief.ID == "" || value.Citation.ID == "" || recordedAtUnixMillis < 1 {
+		return fmt.Errorf("invalid truth bundle")
+	}
+	_, err := r.pool.Exec(ctx, `INSERT INTO epistemics.truth_bundles (
+		bundle_id,source_id,source_kind,source_locator,source_title,source_publisher,snapshot_id,snapshot_source_id,snapshot_content_digest,snapshot_captured_at_unix_millis,snapshot_freshness,
+		excerpt_id,excerpt_snapshot_id,excerpt_text,excerpt_start,excerpt_end,observation_id,observation_observed_at_unix_millis,claim_id,claim_statement,claim_observation_id,claim_citation_id,claim_verification,
+		belief_id,belief_claim_id,belief_state,citation_id,citation_excerpt_id,citation_evidence,citation_coverage,citation_conflict,citation_resolved_at_unix_millis,recorded_at_unix_millis)
+		VALUES ($1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14,$15,$16,$17,$18,$19,$20,$21,$22,$23,$24,$25,$26,$27,$28,$29,$30,$31,$32,$33)
+		ON CONFLICT (bundle_id) DO UPDATE SET recorded_at_unix_millis=EXCLUDED.recorded_at_unix_millis`,
+		"bundle:"+string(value.Citation.ID), value.Source.ID, value.Source.Kind, value.Source.Locator, value.Source.Title, value.Source.Publisher,
+		value.Snapshot.ID, value.Snapshot.SourceID, value.Snapshot.ContentDigest, value.Snapshot.CapturedAtUnixMillis, value.Snapshot.Freshness,
+		value.Excerpt.ID, value.Excerpt.SnapshotID, value.Excerpt.Text, value.Excerpt.Start, value.Excerpt.End,
+		value.Observation.ID, value.Observation.ObservedAt, value.Claim.ID, value.Claim.Statement, value.Claim.ObservationID, value.Claim.CitationID, value.Claim.Verification,
+		value.Belief.ID, value.Belief.ClaimID, value.Belief.State, value.Citation.ID, value.Citation.ExcerptID, value.Citation.Evidence, value.Citation.Coverage, value.Citation.Conflict, value.Citation.ResolvedAtUnixMillis, recordedAtUnixMillis)
+	return err
+}

adapters/research/http_connector.go

@@ -0,0 +1,74 @@
+package research
+
+import (
+	"context"
+	"crypto/sha256"
+	"encoding/hex"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"strings"
+
+	"git.cin.su/m/Assistant/contracts/epistemics"
+)
+
+var ErrHTTPSourceRejected = errors.New("http research source rejected")
+
+type HTTPConnector struct {
+	Client       *http.Client
+	AllowedHosts map[string]struct{}
+	MaxBytes     int64
+}
+
+func (c HTTPConnector) Collect(ctx context.Context, request epistemics.WebResearchRequest, nowUnixMillis int64) (epistemics.ResearchCandidate, error) {
+	if request.Plan.Validate() != nil || request.SourceID == "" || strings.TrimSpace(request.Statement) == "" || nowUnixMillis < 1 {
+		return epistemics.ResearchCandidate{}, ErrHTTPSourceRejected
+	}
+	u, err := url.Parse(request.URL)
+	if err != nil || u.Scheme != "https" || u.User != nil || u.Host == "" || !c.allowedHost(strings.ToLower(u.Hostname())) {
+		return epistemics.ResearchCandidate{}, ErrHTTPSourceRejected
+	}
+	client := c.Client
+	if client == nil {
+		client = &http.Client{}
+	}
+	maxBytes := c.MaxBytes
+	if maxBytes <= 0 || maxBytes > 4<<20 {
+		maxBytes = 256 << 10
+	}
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, u.String(), nil)
+	if err != nil {
+		return epistemics.ResearchCandidate{}, ErrHTTPSourceRejected
+	}
+	response, err := client.Do(req)
+	if err != nil {
+		return epistemics.ResearchCandidate{}, fmt.Errorf("read web source: %w", err)
+	}
+	defer response.Body.Close()
+	if response.StatusCode < 200 || response.StatusCode >= 300 {
+		return epistemics.ResearchCandidate{}, fmt.Errorf("web source status: %s", response.Status)
+	}
+	body, err := io.ReadAll(io.LimitReader(response.Body, maxBytes+1))
+	if err != nil || int64(len(body)) > maxBytes || len(body) == 0 {
+		return epistemics.ResearchCandidate{}, ErrHTTPSourceRejected
+	}
+	digest := sha256.Sum256(body)
+	digestText := "sha256:" + hex.EncodeToString(digest[:])
+	key := sha256.Sum256([]byte(u.String() + "\x00" + digestText))
+	keyText := hex.EncodeToString(key[:])
+	snapshotID := epistemics.SourceSnapshotID("snapshot:" + keyText)
+	return epistemics.ResearchCandidate{
+		PropositionKey: request.PropositionKey, Statement: request.Statement,
+		Source:   epistemics.Source{ID: request.SourceID, Kind: "web", Locator: u.String(), Title: request.Title, Publisher: u.Hostname()},
+		Snapshot: epistemics.SourceSnapshot{ID: snapshotID, SourceID: request.SourceID, ContentDigest: digestText, CapturedAtUnixMillis: nowUnixMillis, Freshness: epistemics.FreshnessCurrent},
+		Excerpt:  epistemics.SourceExcerpt{ID: epistemics.SourceExcerptID("excerpt:" + keyText), SnapshotID: snapshotID, Text: string(body), Start: 0, End: int64(len(body))},
+		Evidence: epistemics.EvidenceObserved, Coverage: epistemics.CoverageComplete, Conflict: epistemics.ConflictNone,
+	}, nil
+}
+
+func (c HTTPConnector) allowedHost(host string) bool {
+	_, ok := c.AllowedHosts[host]
+	return ok
+}

adapters/research/repository_connector.go

@@ -0,0 +1,63 @@
+package research
+
+import (
+	"context"
+	"crypto/sha256"
+	"encoding/hex"
+	"errors"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"git.cin.su/m/Assistant/contracts/epistemics"
+)
+
+var ErrRepositoryPathRejected = errors.New("repository source path rejected")
+
+type RepositoryConnector struct{ Root string }
+
+func (c RepositoryConnector) Collect(ctx context.Context, request epistemics.RepositoryResearchRequest, nowUnixMillis int64) (epistemics.ResearchCandidate, error) {
+	if err := request.Plan.Validate(); err != nil {
+		return epistemics.ResearchCandidate{}, err
+	}
+	if request.SourceID == "" || strings.TrimSpace(request.Statement) == "" || nowUnixMillis < 1 {
+		return epistemics.ResearchCandidate{}, ErrRepositoryPathRejected
+	}
+	root, err := filepath.Abs(c.Root)
+	if err != nil || root == "" {
+		return epistemics.ResearchCandidate{}, ErrRepositoryPathRejected
+	}
+	path, err := filepath.Abs(filepath.Join(root, filepath.FromSlash(request.Path)))
+	if err != nil || !withinRoot(root, path) {
+		return epistemics.ResearchCandidate{}, ErrRepositoryPathRejected
+	}
+	select {
+	case <-ctx.Done():
+		return epistemics.ResearchCandidate{}, ctx.Err()
+	default:
+	}
+	content, err := os.ReadFile(path)
+	if err != nil || len(content) == 0 {
+		return epistemics.ResearchCandidate{}, fmt.Errorf("read repository source: %w", err)
+	}
+	digest := sha256.Sum256(content)
+	digestText := "sha256:" + hex.EncodeToString(digest[:])
+	key := sha256.Sum256([]byte(filepath.ToSlash(path) + "\x00" + digestText))
+	keyText := hex.EncodeToString(key[:])
+	return epistemics.ResearchCandidate{
+		PropositionKey: request.PropositionKey,
+		Statement:      request.Statement,
+		Source:         epistemics.Source{ID: request.SourceID, Kind: "repository", Locator: "file://" + filepath.ToSlash(path), Title: filepath.Base(path), Publisher: "local-repository"},
+		Snapshot:       epistemics.SourceSnapshot{ID: epistemics.SourceSnapshotID("snapshot:" + keyText), SourceID: request.SourceID, ContentDigest: digestText, CapturedAtUnixMillis: nowUnixMillis, Freshness: epistemics.FreshnessCurrent},
+		Excerpt:        epistemics.SourceExcerpt{ID: epistemics.SourceExcerptID("excerpt:" + keyText), SnapshotID: epistemics.SourceSnapshotID("snapshot:" + keyText), Text: string(content), Start: 0, End: int64(len(content))},
+		Evidence:       epistemics.EvidenceObserved,
+		Coverage:       epistemics.CoverageComplete,
+		Conflict:       epistemics.ConflictNone,
+	}, nil
+}
+
+func withinRoot(root, path string) bool {
+	rel, err := filepath.Rel(root, path)
+	return err == nil && rel != ".." && !strings.HasPrefix(rel, ".."+string(filepath.Separator)) && !filepath.IsAbs(rel)
+}

cmd/cognitive-worker/admission.go

@@ -0,0 +1,68 @@
+package main
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"strings"
+
+	"git.cin.su/m/Assistant/contracts/capability"
+)
+
+type httpAdmissionClient struct {
+	baseURL string
+	client  *http.Client
+}
+
+func newHTTPAdmissionClient(baseURL string, client *http.Client) *httpAdmissionClient {
+	return &httpAdmissionClient{baseURL: strings.TrimRight(baseURL, "/"), client: client}
+}
+
+func (c *httpAdmissionClient) Admit(ctx context.Context, leaseID string, request capability.AdmissionRequest) (capability.AdmissionDecision, capability.AdmissionLease, error) {
+	payload, err := json.Marshal(struct {
+		LeaseID string                      `json:"lease_id"`
+		Request capability.AdmissionRequest `json:"request"`
+	}{leaseID, request})
+	if err != nil {
+		return capability.AdmissionDecision{}, capability.AdmissionLease{}, err
+	}
+	req, err := http.NewRequestWithContext(ctx, http.MethodPost, c.baseURL+"/v1/internal/cognitive/admission", bytes.NewReader(payload))
+	if err != nil {
+		return capability.AdmissionDecision{}, capability.AdmissionLease{}, err
+	}
+	req.Header.Set("Content-Type", "application/json")
+	resp, err := c.client.Do(req)
+	if err != nil {
+		return capability.AdmissionDecision{}, capability.AdmissionLease{}, err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode != http.StatusOK {
+		return capability.AdmissionDecision{}, capability.AdmissionLease{}, fmt.Errorf("admission status %d", resp.StatusCode)
+	}
+	var result struct {
+		Decision capability.AdmissionDecision `json:"decision"`
+		Lease    capability.AdmissionLease    `json:"lease"`
+	}
+	if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
+		return capability.AdmissionDecision{}, capability.AdmissionLease{}, err
+	}
+	return result.Decision, result.Lease, nil
+}
+
+func (c *httpAdmissionClient) Release(ctx context.Context, lease capability.AdmissionLease) error {
+	req, err := http.NewRequestWithContext(ctx, http.MethodPost, c.baseURL+"/v1/internal/cognitive/admission/"+lease.ID+"/release", nil)
+	if err != nil {
+		return err
+	}
+	resp, err := c.client.Do(req)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode != http.StatusNoContent {
+		return fmt.Errorf("admission release status %d", resp.StatusCode)
+	}
+	return nil
+}

cmd/cognitive-worker/admission_test.go

@@ -0,0 +1,49 @@
+package main
+
+import (
+	"context"
+	"testing"
+
+	"git.cin.su/m/Assistant/contracts/capability"
+	"git.cin.su/m/Assistant/contracts/cognitive"
+)
+
+type admissionTestProvider struct{ calls int }
+
+func (p *admissionTestProvider) Advise(context.Context, cognitive.AdvisoryRequest) (cognitive.AdvisoryResponse, error) {
+	p.calls++
+	return cognitive.AdvisoryResponse{FinishReason: cognitive.FinishCompleted}, nil
+}
+
+type admissionTestClient struct {
+	decision capability.AdmissionDecision
+	releases int
+}
+
+func (c *admissionTestClient) Admit(context.Context, string, capability.AdmissionRequest) (capability.AdmissionDecision, capability.AdmissionLease, error) {
+	return c.decision, capability.AdmissionLease{ID: "lease-1", PolicyID: "policy-1"}, nil
+}
+func (c *admissionTestClient) Release(context.Context, capability.AdmissionLease) error {
+	c.releases++
+	return nil
+}
+
+func TestInvokeAdmittedDoesNotCallProviderWhenRejected(t *testing.T) {
+	provider := &admissionTestProvider{}
+	client := &admissionTestClient{decision: capability.AdmissionDecision{State: capability.AdmissionRejected, Reason: capability.AdmissionReasonConcurrency, PolicyID: "policy-1"}}
+	gateway := cognitiveGateway{admission: client}
+	response, err := gateway.invokeAdmitted(context.Background(), "request-1", provider, cognitive.AdvisoryRequest{Message: "hello"}, 100)
+	if err != nil || response.FinishReason != cognitive.FinishRateLimited || provider.calls != 0 || client.releases != 0 {
+		t.Fatalf("rejected admission leaked provider call: response=%#v err=%v calls=%d releases=%d", response, err, provider.calls, client.releases)
+	}
+}
+
+func TestInvokeAdmittedReleasesDurableLeaseAfterProvider(t *testing.T) {
+	provider := &admissionTestProvider{}
+	client := &admissionTestClient{decision: capability.AdmissionDecision{State: capability.AdmissionAdmitted, Reason: capability.AdmissionReasonNone, PolicyID: "policy-1"}}
+	gateway := cognitiveGateway{admission: client}
+	response, err := gateway.invokeAdmitted(context.Background(), "request-1", provider, cognitive.AdvisoryRequest{Message: "hello"}, 100)
+	if err != nil || response.FinishReason != cognitive.FinishCompleted || provider.calls != 1 || client.releases != 1 {
+		t.Fatalf("admitted lease was not released: response=%#v err=%v calls=%d releases=%d", response, err, provider.calls, client.releases)
+	}
+}

cmd/cognitive-worker/fleet_status.go

@@ -0,0 +1,70 @@
+package main
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"strings"
+	"time"
+
+	"git.cin.su/m/Assistant/contracts/capability"
+	fleetdomain "git.cin.su/m/Assistant/modules/capability/domain"
+)
+
+type fleetEndpoint struct {
+	ProviderID string
+	ModelID    string
+	Tier       capability.FleetTier
+	URL        string
+}
+
+type fleetStatusResponse struct {
+	Readiness capability.FleetReadiness `json:"readiness"`
+	Preferred capability.FleetTier      `json:"preferred_tier"`
+	Selected  capability.FleetTier      `json:"selected_tier,omitempty"`
+	Error     string                    `json:"error,omitempty"`
+}
+
+func fleetReadinessHandler(client *http.Client, preferred capability.FleetTier, endpoints []fleetEndpoint) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		members := make([]capability.FleetMember, 0, len(endpoints))
+		for _, endpoint := range endpoints {
+			member := capability.FleetMember{ProviderInstanceID: capability.ProviderInstanceID(endpoint.ProviderID), ModelDescriptorID: capability.ModelDescriptorID(endpoint.ModelID), Tier: endpoint.Tier, Reason: "NOT_CONFIGURED"}
+			if strings.TrimSpace(endpoint.URL) == "" {
+				members = append(members, member)
+				continue
+			}
+			request, err := http.NewRequestWithContext(r.Context(), http.MethodGet, endpoint.URL, nil)
+			if err == nil {
+				response, requestErr := client.Do(request)
+				if requestErr == nil {
+					response.Body.Close()
+					if response.StatusCode >= 200 && response.StatusCode < 300 {
+						member.Ready, member.Reason = true, "AVAILABLE"
+					} else {
+						member.Reason = fmt.Sprintf("status=%s", response.Status)
+					}
+				} else {
+					member.Reason = requestErr.Error()
+				}
+			}
+			members = append(members, member)
+		}
+		readiness, err := fleetdomain.BuildFleetReadiness(time.Now().UnixMilli(), members)
+		response := fleetStatusResponse{Readiness: readiness, Preferred: preferred}
+		if err == nil {
+			response.Selected, err = fleetdomain.SelectFleetTier(readiness, preferred)
+		}
+		if err != nil {
+			response.Error = err.Error()
+		}
+		w.Header().Set("Content-Type", "application/json")
+		if response.Selected == "" {
+			w.WriteHeader(http.StatusServiceUnavailable)
+		}
+		_ = json.NewEncoder(w).Encode(response)
+	})
+}
+
+func fleetContext(ctx context.Context) context.Context { return ctx }

cmd/cognitive-worker/fleet_status_test.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+
+	"git.cin.su/m/Assistant/contracts/capability"
+)
+
+func TestFleetReadinessSelectsLifeboatWhenPrimaryTiersUnavailable(t *testing.T) {
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) { w.WriteHeader(http.StatusOK) }))
+	defer server.Close()
+	handler := fleetReadinessHandler(server.Client(), capability.FleetTierHeavy, []fleetEndpoint{
+		{ProviderID: "cpu", ModelID: "cpu-model", Tier: capability.FleetTierFast, URL: server.URL},
+		{ProviderID: "medium", ModelID: "medium-model", Tier: capability.FleetTierMedium},
+		{ProviderID: "heavy", ModelID: "heavy-model", Tier: capability.FleetTierHeavy},
+		{ProviderID: "lifeboat", ModelID: "lifeboat-model", Tier: capability.FleetTierLifeboat, URL: server.URL},
+	})
+	recorder := httptest.NewRecorder()
+	request := httptest.NewRequest(http.MethodGet, "/v1/fleet/readiness", nil)
+	handler.ServeHTTP(recorder, request)
+	if recorder.Code != http.StatusOK || !strings.Contains(recorder.Body.String(), `"selected_tier":"LIFEBOAT"`) || !strings.Contains(recorder.Body.String(), `"tier":"MEDIUM"`) {
+		t.Fatalf("status=%d body=%s", recorder.Code, recorder.Body.String())
+	}
+}

cmd/cognitive-worker/gateway.go

@@ -26,6 +26,11 @@ type bindingResolver interface {
 	RegisterDiscovery(context.Context, capability.CognitiveDiscoverySnapshot) (capability.CognitiveDiscoveryRegistration, error)
 }
 
+type admissionClient interface {
+	Admit(context.Context, string, capability.AdmissionRequest) (capability.AdmissionDecision, capability.AdmissionLease, error)
+	Release(context.Context, capability.AdmissionLease) error
+}
+
 type providerRegistration struct {
 	ProviderInstanceID capability.ProviderInstanceID
 	Kind               capability.ProviderKind
@@ -46,6 +51,7 @@ type cognitiveGateway struct {
 	now                  func() time.Time
 	allowCanary          bool
 	canaryMaxOutputBytes int
+	admission            admissionClient
 }
 
 func (g cognitiveGateway) policyHandler(w http.ResponseWriter, r *http.Request) {
@@ -95,9 +101,9 @@ func (g cognitiveGateway) advisoryHandler(w http.ResponseWriter, r *http.Request
 	}
 	invocation := cognitive.AdvisoryRequest{Version: request.Version, RequestID: request.RequestID, ActorID: request.ActorID, PrincipalID: request.PrincipalID, ScopeID: request.ScopeID, Message: request.Message, Context: request.Context, Locale: request.Locale, MaxOutputBytes: maxOutputBytes, ProviderBindingID: selected.Binding.ID, ProviderBindingRevision: selected.Binding.Revision, ProviderInstanceID: selected.Provider.ID, ModelDescriptorID: selected.Model.ID, ProviderModelID: selected.Model.ProviderModelID}
 	started := g.now()
-	response, invokeErr := provider.Advise(r.Context(), invocation)
+	response, invokeErr := g.invokeAdmitted(r.Context(), string(request.RequestID), provider, invocation, maxOutputBytes)
 	if invokeErr != nil {
-		response = cognitive.AdvisoryResponse{Version: request.Version, RequestID: request.RequestID, ProviderBindingID: selected.Binding.ID, ProviderBindingRevision: selected.Binding.Revision, FinishReason: cognitive.FinishInvalidProviderResponse}
+		response = cognitive.AdvisoryResponse{Version: request.Version, RequestID: request.RequestID, ProviderBindingID: selected.Binding.ID, ProviderBindingRevision: selected.Binding.Revision, FinishReason: cognitive.FinishProviderUnavailable}
 	}
 	g.observe(r.Context(), selected, response, started)
 	if fallbackEligible(response.FinishReason) {
@@ -109,9 +115,9 @@ func (g cognitiveGateway) advisoryHandler(w http.ResponseWriter, r *http.Request
 			fallbackRequest.ProviderBindingID, fallbackRequest.ProviderBindingRevision = fallback.Binding.ID, fallback.Binding.Revision
 			fallbackRequest.ProviderInstanceID, fallbackRequest.ModelDescriptorID, fallbackRequest.ProviderModelID = fallback.Provider.ID, fallback.Model.ID, fallback.Model.ProviderModelID
 			fallbackStarted := g.now()
-			fallbackResponse, fallbackErr := fallbackProvider.Advise(r.Context(), fallbackRequest)
+			fallbackResponse, fallbackErr := g.invokeAdmitted(r.Context(), string(request.RequestID)+":fallback", fallbackProvider, fallbackRequest, maxOutputBytes)
 			if fallbackErr != nil {
-				fallbackResponse = cognitive.AdvisoryResponse{Version: request.Version, RequestID: request.RequestID, ProviderBindingID: fallback.Binding.ID, ProviderBindingRevision: fallback.Binding.Revision, FinishReason: cognitive.FinishInvalidProviderResponse}
+				fallbackResponse = cognitive.AdvisoryResponse{Version: request.Version, RequestID: request.RequestID, ProviderBindingID: fallback.Binding.ID, ProviderBindingRevision: fallback.Binding.Revision, FinishReason: cognitive.FinishProviderUnavailable}
 			}
 			g.observe(r.Context(), fallback, fallbackResponse, fallbackStarted)
 			response = fallbackResponse
@@ -124,6 +130,22 @@ func (g cognitiveGateway) advisoryHandler(w http.ResponseWriter, r *http.Request
 	writeGatewayResponse(w, cognitive.GatewayAdvisoryResponse{Version: response.Version, RequestID: response.RequestID, AdvisoryText: response.AdvisoryText, ReferencedExcerptIDs: response.ReferencedExcerptIDs, FinishReason: response.FinishReason, Usage: response.Usage})
 }
 
+func (g cognitiveGateway) invokeAdmitted(ctx context.Context, leaseID string, provider advisoryProvider, invocation cognitive.AdvisoryRequest, maxOutputBytes int) (cognitive.AdvisoryResponse, error) {
+	var lease capability.AdmissionLease
+	if g.admission != nil {
+		decision, admittedLease, err := g.admission.Admit(ctx, leaseID, capability.AdmissionRequest{InputBytes: len(invocation.Message), MaxOutputBytes: maxOutputBytes, DeadlineMillis: 0})
+		if err != nil {
+			return cognitive.AdvisoryResponse{}, err
+		}
+		if decision.State != capability.AdmissionAdmitted {
+			return cognitive.AdvisoryResponse{Version: invocation.Version, RequestID: invocation.RequestID, ProviderBindingID: invocation.ProviderBindingID, ProviderBindingRevision: invocation.ProviderBindingRevision, FinishReason: cognitive.FinishRateLimited}, nil
+		}
+		lease = admittedLease
+		defer func() { _ = g.admission.Release(ctx, lease) }()
+	}
+	return provider.Advise(ctx, invocation)
+}
+
 func selectionObjectiveForMessage(message string) capability.SelectionObjective {
 	lower := strings.ToLower(message)
 	if strings.Contains(lower, "дешев") || strings.Contains(lower, "бесплат") || strings.Contains(lower, "эконом") || strings.Contains(lower, "cost") || strings.Contains(lower, "cheap") {

cmd/cognitive-worker/main.go

@@ -70,16 +70,24 @@ func main() {
 		kind := capability.ProviderKind(envOr("OPENAI_PROVIDER_KIND", "openai-responses-v1"))
 		providers[kind] = append(providers[kind], providerRegistration{ProviderInstanceID: "openai-bootstrap", Kind: kind, EndpointRef: capability.EndpointBindingRef(envOr("OPENAI_ENDPOINT_REF", "openai-responses-default")), CredentialRef: capability.CredentialRef(envOr("OPENAI_CREDENTIAL_REF", "openai-advisory-v1")), AuthMode: capability.AuthKey, BillingMode: capability.BillingPerInput, DataPolicy: capability.DataPolicyExternalMessageOnly, Provider: openAIProvider})
 	}
-	gateway := cognitiveGateway{resolver: resolver, providers: providers, builtinLocal: builtinLocal, externalRecovery: externalRecovery, now: time.Now, allowCanary: os.Getenv("COGNITIVE_ALLOW_CANARY") == "true", canaryMaxOutputBytes: 4096}
+	gateway := cognitiveGateway{resolver: resolver, providers: providers, builtinLocal: builtinLocal, externalRecovery: externalRecovery, now: time.Now, allowCanary: os.Getenv("COGNITIVE_ALLOW_CANARY") == "true", canaryMaxOutputBytes: 4096, admission: newHTTPAdmissionClient(envOr("CORE_RUNTIME_URL", "http://core-runtime:8080"), &http.Client{Timeout: 5 * time.Second})}
 	mux.Handle("/healthz", health.Handler{Runtime: "cognitive-worker", SemanticGeneration: 1, ArchitectureGeneration: 1})
 	readinessClient := &http.Client{Timeout: 2 * time.Second}
 	lifeboatURL := strings.TrimSuffix(strings.TrimRight(envOr("LOCAL_LIFEBOAT_PROVIDER_URL", "http://cognitive-lifeboat:8086/v1"), "/"), "/v1") + "/health"
 	mux.Handle("/readyz", health.ReadinessHandler{Runtime: "cognitive-worker", Probes: []health.Probe{
 		health.HTTPProbe(readinessClient, strings.TrimRight(envOr("CORE_RUNTIME_URL", "http://core-runtime:8080"), "/")+"/healthz"),
-		health.HTTPProbe(readinessClient, strings.TrimRight(envOr("LOCAL_CPU_PROVIDER_URL", "http://docker.cin.su:18082/v1"), "/")+"/models"),
+		health.OptionalHTTPProbe(readinessClient, strings.TrimRight(envOr("LOCAL_CPU_PROVIDER_URL", "http://docker.cin.su:18082/v1"), "/")+"/models"),
 		health.HTTPProbe(readinessClient, lifeboatURL),
-		health.HTTPProbe(readinessClient, strings.TrimRight(envOr("LOCAL_GPU_PROVIDER_URL", "http://192.168.220.91:11434"), "/")+"/api/tags"),
+		health.OptionalHTTPProbe(readinessClient, strings.TrimRight(envOr("LOCAL_GPU_PROVIDER_URL", "http://192.168.220.91:11434"), "/")+"/api/tags"),
 	}})
+	fleetClient := &http.Client{Timeout: 2 * time.Second}
+	preferredFleet := capability.FleetTier(envOr("COGNITIVE_PREFERRED_FLEET_TIER", string(capability.FleetTierHeavy)))
+	mux.Handle("/v1/fleet/readiness", fleetReadinessHandler(fleetClient, preferredFleet, []fleetEndpoint{
+		{ProviderID: "local-cpu-primary", ModelID: "local-cpu-model", Tier: capability.FleetTierFast, URL: strings.TrimRight(envOr("LOCAL_CPU_PROVIDER_URL", "http://docker.cin.su:18082/v1"), "/") + "/models"},
+		{ProviderID: "local-medium-unconfigured", ModelID: "medium-unconfigured", Tier: capability.FleetTierMedium},
+		{ProviderID: "local-gpu-opportunistic", ModelID: "gpu-opportunistic", Tier: capability.FleetTierHeavy, URL: strings.TrimRight(envOr("LOCAL_GPU_PROVIDER_URL", "http://192.168.220.91:11434"), "/") + "/api/tags"},
+		{ProviderID: "cognitive-lifeboat", ModelID: "qwen3-8b-lifeboat", Tier: capability.FleetTierLifeboat, URL: lifeboatURL},
+	}))
 	mux.HandleFunc("POST /v1/proposals/deterministic", deterministicProposal)
 	mux.HandleFunc("POST /v1/advisory-policy", gateway.policyHandler)
 	mux.HandleFunc("POST /v1/advisories", gateway.advisoryHandler)

cmd/core-runtime/main.go

@@ -141,6 +141,34 @@ func main() {
 		health.HTTPProbe(readinessClient, strings.TrimRight(envOr("CONTINUITY_RUNTIME_URL", "http://continuity-runtime:8081"), "/")+"/healthz"),
 		health.HTTPProbe(readinessClient, strings.TrimRight(envOr("COGNITIVE_RUNTIME_URL", "http://cognitive-worker:8083"), "/")+"/healthz"),
 	}})
+	admissionPolicy := capability.AdmissionPolicy{ID: envOr("COGNITIVE_ADMISSION_POLICY_ID", "creator-advisory-local-v1"), MaxConcurrent: envInt("COGNITIVE_ADMISSION_MAX_CONCURRENT", 1), MaxAcceptedPerHour: envInt("COGNITIVE_ADMISSION_MAX_ACCEPTED_PER_HOUR", 60), MaxInputBytes: envInt("COGNITIVE_ADMISSION_MAX_INPUT_BYTES", 80<<10), MaxOutputBytes: envInt("COGNITIVE_ADMISSION_MAX_OUTPUT_BYTES", 16<<10)}
+	mux.HandleFunc("POST /v1/internal/cognitive/admission", func(w http.ResponseWriter, r *http.Request) {
+		var request struct {
+			LeaseID string                      `json:"lease_id"`
+			Request capability.AdmissionRequest `json:"request"`
+		}
+		if err := json.NewDecoder(http.MaxBytesReader(w, r.Body, 16<<10)).Decode(&request); err != nil || request.LeaseID == "" {
+			http.Error(w, "invalid admission request", http.StatusBadRequest)
+			return
+		}
+		decision, lease, err := capabilityRepository.AdmitCognitive(r.Context(), request.LeaseID, admissionPolicy, request.Request, time.Now().UnixMilli())
+		if err != nil {
+			http.Error(w, "admission unavailable", http.StatusServiceUnavailable)
+			return
+		}
+		w.Header().Set("Content-Type", "application/json")
+		_ = json.NewEncoder(w).Encode(struct {
+			Decision capability.AdmissionDecision `json:"decision"`
+			Lease    capability.AdmissionLease    `json:"lease"`
+		}{decision, lease})
+	})
+	mux.HandleFunc("POST /v1/internal/cognitive/admission/{lease}/release", func(w http.ResponseWriter, r *http.Request) {
+		if err := capabilityRepository.ReleaseCognitiveAdmission(r.Context(), capability.AdmissionLease{ID: r.PathValue("lease")}, time.Now().UnixMilli()); err != nil {
+			http.Error(w, "admission release unavailable", http.StatusServiceUnavailable)
+			return
+		}
+		w.WriteHeader(http.StatusNoContent)
+	})
 	mux.HandleFunc("POST /v1/creator/sessions", creatorSessionHandler(bootstrapToken, creatorUsername, creatorPassword, sessionKey, time.Now))
 	mux.HandleFunc("GET /v1/creator/sessions/current", func(w http.ResponseWriter, r *http.Request) {
 		session, ok := authenticateCreator(w, r)
@@ -1159,6 +1187,14 @@ func envOr(name, fallback string) string {
 	return fallback
 }
 
+func envInt(name string, fallback int) int {
+	value, err := strconv.Atoi(os.Getenv(name))
+	if err != nil || value < 1 {
+		return fallback
+	}
+	return value
+}
+
 func humanCognitiveModelInventory(candidates []capability.ResolvedCognitiveBinding, inventoryErr error) string {
 	if inventoryErr != nil {
 		return "Я не смогла прочитать реестр подключённых моделей. Встроенный канал Домового остаётся доступен; настройки можно проверить повторно после восстановления реестра. Ключи и пароли не выводятся в чат."

cmd/research-runtime/main.go

@@ -0,0 +1,126 @@
+package main
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"strings"
+	"time"
+
+	"git.cin.su/m/Assistant/adapters/postgres"
+	researchadapter "git.cin.su/m/Assistant/adapters/research"
+	"git.cin.su/m/Assistant/contracts/epistemics"
+	secretcontracts "git.cin.su/m/Assistant/contracts/secrets"
+	"git.cin.su/m/Assistant/modules/epistemics/application"
+	"git.cin.su/m/Assistant/platform/secrets"
+	"git.cin.su/m/Assistant/runtime/health"
+)
+
+func main() {
+	ctx := context.Background()
+	password, err := resolveDatabasePassword()
+	if err != nil {
+		log.Fatal(err)
+	}
+	repository, err := postgres.OpenEpistemics(ctx, postgres.ContinuityConfig{Host: os.Getenv("POSTGRES_HOST"), Port: os.Getenv("POSTGRES_PORT"), Database: os.Getenv("POSTGRES_DATABASE"), User: os.Getenv("EPISTEMICS_POSTGRES_USER"), Password: password})
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer repository.Close()
+
+	mux := http.NewServeMux()
+	mux.Handle("/healthz", health.Handler{Runtime: "research-runtime", SemanticGeneration: 1, ArchitectureGeneration: 1})
+	mux.Handle("/readyz", health.ReadinessHandler{Runtime: "research-runtime", Probes: []health.Probe{{Name: "epistemics-postgres", Check: func(ctx context.Context) error { return repository.Ping(ctx) }}}})
+	mux.HandleFunc("POST /v1/research/evaluate", func(w http.ResponseWriter, r *http.Request) {
+		var request epistemics.ResearchEvaluationRequest
+		if err := json.NewDecoder(http.MaxBytesReader(w, r.Body, 2<<20)).Decode(&request); err != nil {
+			http.Error(w, "invalid research evidence", http.StatusBadRequest)
+			return
+		}
+		result, err := application.EvaluateAndPersist(r.Context(), request, repository, time.Now().UnixMilli())
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusUnprocessableEntity)
+			return
+		}
+		w.Header().Set("Content-Type", "application/json")
+		_ = json.NewEncoder(w).Encode(result)
+	})
+	connector := researchadapter.RepositoryConnector{Root: os.Getenv("RESEARCH_SOURCE_ROOT")}
+	mux.HandleFunc("POST /v1/research/repository/evaluate", func(w http.ResponseWriter, r *http.Request) {
+		var request epistemics.RepositoryResearchRequest
+		if err := json.NewDecoder(http.MaxBytesReader(w, r.Body, 128<<10)).Decode(&request); err != nil {
+			http.Error(w, "invalid repository research request", http.StatusBadRequest)
+			return
+		}
+		candidate, err := connector.Collect(r.Context(), request, time.Now().UnixMilli())
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusUnprocessableEntity)
+			return
+		}
+		result, err := application.EvaluateAndPersist(r.Context(), epistemics.ResearchEvaluationRequest{Plan: request.Plan, Candidates: []epistemics.ResearchCandidate{candidate}}, repository, time.Now().UnixMilli())
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusUnprocessableEntity)
+			return
+		}
+		w.Header().Set("Content-Type", "application/json")
+		_ = json.NewEncoder(w).Encode(result)
+	})
+	webConnector := researchadapter.HTTPConnector{AllowedHosts: allowedHosts(os.Getenv("RESEARCH_HTTP_ALLOWED_HOSTS")), Client: &http.Client{Timeout: 5 * time.Second}}
+	mux.HandleFunc("POST /v1/research/web/evaluate", func(w http.ResponseWriter, r *http.Request) {
+		var request epistemics.WebResearchRequest
+		if err := json.NewDecoder(http.MaxBytesReader(w, r.Body, 128<<10)).Decode(&request); err != nil {
+			http.Error(w, "invalid web research request", http.StatusBadRequest)
+			return
+		}
+		candidate, err := webConnector.Collect(r.Context(), request, time.Now().UnixMilli())
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusUnprocessableEntity)
+			return
+		}
+		result, err := application.EvaluateAndPersist(r.Context(), epistemics.ResearchEvaluationRequest{Plan: request.Plan, Candidates: []epistemics.ResearchCandidate{candidate}}, repository, time.Now().UnixMilli())
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusUnprocessableEntity)
+			return
+		}
+		w.Header().Set("Content-Type", "application/json")
+		_ = json.NewEncoder(w).Encode(result)
+	})
+	addr := os.Getenv("LISTEN_ADDR")
+	if addr == "" {
+		addr = ":8087"
+	}
+	log.Printf("research-runtime listening on %s", addr)
+	log.Fatal(http.ListenAndServe(addr, mux))
+}
+
+func allowedHosts(value string) map[string]struct{} {
+	result := map[string]struct{}{}
+	for _, host := range strings.Split(value, ",") {
+		if host = strings.ToLower(strings.TrimSpace(host)); host != "" {
+			result[host] = struct{}{}
+		}
+	}
+	return result
+}
+
+func resolveDatabasePassword() (string, error) {
+	if _, ok := os.LookupEnv("EPISTEMICS_POSTGRES_PASSWORD"); ok {
+		return "", fmt.Errorf("EPISTEMICS_POSTGRES_PASSWORD direct environment secret is forbidden")
+	}
+	path, ref := os.Getenv("EPISTEMICS_POSTGRES_PASSWORD_FILE"), os.Getenv("EPISTEMICS_POSTGRES_CREDENTIAL_REF")
+	if path == "" || ref == "" {
+		return "", fmt.Errorf("EPISTEMICS_POSTGRES_PASSWORD_FILE and EPISTEMICS_POSTGRES_CREDENTIAL_REF are required")
+	}
+	root := os.Getenv("SECRET_BACKEND_ROOT")
+	if root == "" {
+		root = "/run/secrets"
+	}
+	resolver, err := secrets.NewFileResolver(root)
+	if err != nil {
+		return "", err
+	}
+	return resolver.ResolveFile(secretcontracts.SecretFileRef{CredentialRef: secretcontracts.CredentialRef(ref), Purpose: secretcontracts.SecretPurposeDatabasePassword, Consumer: secretcontracts.RuntimeConsumerEpistemicsWorker, Path: path})
+}

contracts/capability/admission.go

@@ -27,10 +27,10 @@ type AdmissionPolicy struct {
 }
 
 type AdmissionRequest struct {
-	Complexity     AdmissionComplexity
-	InputBytes     int
-	MaxOutputBytes int
-	DeadlineMillis int64
+	Complexity     AdmissionComplexity `json:"complexity"`
+	InputBytes     int                 `json:"input_bytes"`
+	MaxOutputBytes int                 `json:"max_output_bytes"`
+	DeadlineMillis int64               `json:"deadline_millis"`
 }
 
 type AdmissionCounters struct {
@@ -39,9 +39,14 @@ type AdmissionCounters struct {
 }
 
 type AdmissionDecision struct {
-	State    AdmissionDecisionState
-	Reason   AdmissionReason
-	PolicyID string
+	State    AdmissionDecisionState `json:"state"`
+	Reason   AdmissionReason        `json:"reason"`
+	PolicyID string                 `json:"policy_id"`
+}
+
+type AdmissionLease struct {
+	ID       string `json:"id"`
+	PolicyID string `json:"policy_id"`
 }
 
 func Admit(request AdmissionRequest, policy AdmissionPolicy, counters AdmissionCounters, nowMillis int64) AdmissionDecision {

contracts/capability/fleet.go

@@ -10,16 +10,16 @@ const (
 )
 
 type FleetMember struct {
-	ProviderInstanceID ProviderInstanceID
-	ModelDescriptorID  ModelDescriptorID
-	Tier               FleetTier
-	Ready              bool
-	Reason             string
+	ProviderInstanceID ProviderInstanceID `json:"provider_instance_id"`
+	ModelDescriptorID  ModelDescriptorID  `json:"model_descriptor_id"`
+	Tier               FleetTier          `json:"tier"`
+	Ready              bool               `json:"ready"`
+	Reason             string             `json:"reason"`
 }
 
 type FleetReadiness struct {
-	ObservedAtUnixMillis int64
-	Members              []FleetMember
-	ReadyTiers           []FleetTier
-	FallbackTier         FleetTier
+	ObservedAtUnixMillis int64         `json:"observed_at_unix_millis"`
+	Members              []FleetMember `json:"members"`
+	ReadyTiers           []FleetTier   `json:"ready_tiers"`
+	FallbackTier         FleetTier     `json:"fallback_tier"`
 }

contracts/epistemics/research.go

@@ -16,19 +16,24 @@ type FreshnessState string
 type CoverageState string
 type ConflictState string
 type EvidenceKind string
+type ResearchFindingState string
 
 const (
-	FreshnessCurrent FreshnessState = "CURRENT"
-	FreshnessStale   FreshnessState = "STALE"
-	FreshnessUnknown FreshnessState = "UNKNOWN"
-	CoverageComplete CoverageState  = "COMPLETE"
-	CoveragePartial  CoverageState  = "PARTIAL"
-	CoverageUnknown  CoverageState  = "UNKNOWN"
-	ConflictNone     ConflictState  = "NONE"
-	ConflictPresent  ConflictState  = "PRESENT"
-	ConflictUnknown  ConflictState  = "UNKNOWN"
-	EvidenceObserved EvidenceKind   = "OBSERVED"
-	EvidenceAssumed  EvidenceKind   = "ASSUMED"
+	FreshnessCurrent  FreshnessState       = "CURRENT"
+	FreshnessStale    FreshnessState       = "STALE"
+	FreshnessUnknown  FreshnessState       = "UNKNOWN"
+	CoverageComplete  CoverageState        = "COMPLETE"
+	CoveragePartial   CoverageState        = "PARTIAL"
+	CoverageUnknown   CoverageState        = "UNKNOWN"
+	ConflictNone      ConflictState        = "NONE"
+	ConflictPresent   ConflictState        = "PRESENT"
+	ConflictUnknown   ConflictState        = "UNKNOWN"
+	EvidenceObserved  EvidenceKind         = "OBSERVED"
+	EvidenceAssumed   EvidenceKind         = "ASSUMED"
+	FindingSupported  ResearchFindingState = "SUPPORTED"
+	FindingStale      ResearchFindingState = "STALE"
+	FindingConflicted ResearchFindingState = "CONFLICTED"
+	FindingUnknown    ResearchFindingState = "UNKNOWN"
 )
 
 type ResearchPlan struct {
@@ -72,6 +77,60 @@ type Citation struct {
 	ResolvedAtUnixMillis int64
 }
 
+// ResearchCandidate is read-only evidence returned by a connector. The
+// connector supplies the immutable snapshot and exact excerpt; the evaluator
+// never fetches, rewrites or invents either one.
+type ResearchCandidate struct {
+	PropositionKey string
+	Statement      string
+	Source         Source
+	Snapshot       SourceSnapshot
+	Excerpt        SourceExcerpt
+	Evidence       EvidenceKind
+	Coverage       CoverageState
+	Conflict       ConflictState
+}
+
+type ResearchFinding struct {
+	PropositionKey string
+	Statement      string
+	Claim          Claim
+	Citations      []Citation
+	State          ResearchFindingState
+	Reason         string
+}
+
+type ResearchResult struct {
+	PlanID                ResearchPlanID
+	Findings              []ResearchFinding
+	EvaluatedAtUnixMillis int64
+}
+
+// ResearchEvaluationRequest carries immutable evidence from a read-only
+// connector to the evaluator. The runtime never fetches or mutates a source
+// from this contract.
+type ResearchEvaluationRequest struct {
+	Plan       ResearchPlan
+	Candidates []ResearchCandidate
+}
+
+type RepositoryResearchRequest struct {
+	Plan           ResearchPlan
+	PropositionKey string
+	SourceID       SourceID
+	Path           string
+	Statement      string
+}
+
+type WebResearchRequest struct {
+	Plan           ResearchPlan
+	PropositionKey string
+	SourceID       SourceID
+	URL            string
+	Title          string
+	Statement      string
+}
+
 // ResolveCitation creates evidence only when all identifiers form one exact
 // source chain. It deliberately does not fetch, infer or rewrite source text.
 func ResolveCitation(source Source, snapshot SourceSnapshot, excerpt SourceExcerpt, evidence EvidenceKind, coverage CoverageState, conflict ConflictState, resolvedAtUnixMillis int64) (Citation, error) {

contracts/epistemics/truth.go

@@ -31,6 +31,9 @@ type Belief struct {
 }
 
 type TruthBundle struct {
+	Source      Source
+	Snapshot    SourceSnapshot
+	Excerpt     SourceExcerpt
 	Observation Observation
 	Claim       Claim
 	Belief      Belief

database/migrations/033_cognitive_admission_leases.sql

@@ -0,0 +1,30 @@
+BEGIN;
+
+SET ROLE capability_role;
+
+CREATE TABLE IF NOT EXISTS capability.cognitive_admission_counters (
+  policy_id TEXT PRIMARY KEY,
+  window_start_unix_millis BIGINT NOT NULL,
+  accepted_count INTEGER NOT NULL DEFAULT 0,
+  concurrent_count INTEGER NOT NULL DEFAULT 0,
+  updated_at_unix_millis BIGINT NOT NULL,
+  CHECK (policy_id <> ''), CHECK (window_start_unix_millis > 0),
+  CHECK (accepted_count >= 0), CHECK (concurrent_count >= 0),
+  CHECK (updated_at_unix_millis > 0)
+);
+
+CREATE TABLE IF NOT EXISTS capability.cognitive_admission_leases (
+  lease_id TEXT PRIMARY KEY,
+  policy_id TEXT NOT NULL REFERENCES capability.cognitive_admission_counters(policy_id),
+  state TEXT NOT NULL,
+  expires_at_unix_millis BIGINT NOT NULL,
+  created_at_unix_millis BIGINT NOT NULL,
+  CHECK (lease_id <> ''), CHECK (state IN ('ACTIVE','RELEASED','EXPIRED')),
+  CHECK (expires_at_unix_millis > 0), CHECK (created_at_unix_millis > 0)
+);
+
+CREATE INDEX IF NOT EXISTS cognitive_admission_lease_expiry_idx
+  ON capability.cognitive_admission_leases(policy_id, state, expires_at_unix_millis);
+
+RESET ROLE;
+COMMIT;

database/migrations/034_epistemics_truth_bundles.sql

@@ -0,0 +1,49 @@
+BEGIN;
+
+SET ROLE epistemics_role;
+
+CREATE TABLE IF NOT EXISTS epistemics.truth_bundles (
+  bundle_id TEXT PRIMARY KEY,
+  source_id TEXT NOT NULL,
+  source_kind TEXT NOT NULL,
+  source_locator TEXT NOT NULL,
+  source_title TEXT NOT NULL,
+  source_publisher TEXT NOT NULL,
+  snapshot_id TEXT NOT NULL,
+  snapshot_source_id TEXT NOT NULL,
+  snapshot_content_digest TEXT NOT NULL,
+  snapshot_captured_at_unix_millis BIGINT NOT NULL,
+  snapshot_freshness TEXT NOT NULL,
+  excerpt_id TEXT NOT NULL,
+  excerpt_snapshot_id TEXT NOT NULL,
+  excerpt_text TEXT NOT NULL,
+  excerpt_start BIGINT NOT NULL,
+  excerpt_end BIGINT NOT NULL,
+  observation_id TEXT NOT NULL,
+  observation_observed_at_unix_millis BIGINT NOT NULL,
+  claim_id TEXT NOT NULL,
+  claim_statement TEXT NOT NULL,
+  claim_observation_id TEXT NOT NULL,
+  claim_citation_id TEXT NOT NULL,
+  claim_verification TEXT NOT NULL,
+  belief_id TEXT NOT NULL,
+  belief_claim_id TEXT NOT NULL,
+  belief_state TEXT NOT NULL,
+  citation_id TEXT NOT NULL,
+  citation_excerpt_id TEXT NOT NULL,
+  citation_evidence TEXT NOT NULL,
+  citation_coverage TEXT NOT NULL,
+  citation_conflict TEXT NOT NULL,
+  citation_resolved_at_unix_millis BIGINT NOT NULL,
+  recorded_at_unix_millis BIGINT NOT NULL,
+  UNIQUE (snapshot_id, excerpt_id, claim_id),
+  CHECK (bundle_id <> ''), CHECK (source_id <> ''), CHECK (source_locator <> ''),
+  CHECK (excerpt_start >= 0), CHECK (excerpt_end >= excerpt_start),
+  CHECK (recorded_at_unix_millis > 0)
+);
+
+CREATE INDEX IF NOT EXISTS truth_bundles_source_time_idx
+  ON epistemics.truth_bundles (source_id, recorded_at_unix_millis DESC);
+
+RESET ROLE;
+COMMIT;

deploy/apply-migrations.sh

@@ -0,0 +1,53 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+REPO_DIR="${REPO_DIR:-$(CDPATH= cd -- "$(dirname -- "$0")/.." && pwd)}"
+ENV_FILE="${ENV_FILE:-/home/m/assistant-deploy/production-compose.env}"
+POSTGRES_CONTAINER="${POSTGRES_CONTAINER:-assistant-postgres-1}"
+
+if [[ ! -f "$ENV_FILE" ]]; then
+  echo "migration runner: env file is missing" >&2
+  exit 1
+fi
+
+set -a
+# The deployment env file is controlled by the production operator. Values
+# are used only by the local Docker/psql boundary and are never logged.
+. "$ENV_FILE"
+set +a
+
+: "${POSTGRES_SUPERUSER:?POSTGRES_SUPERUSER is required}"
+POSTGRES_SUPERUSER="${POSTGRES_SUPERUSER//$'\r'/}"
+DATABASE="${POSTGRES_DB:-assistant}"
+DATABASE="${DATABASE//$'\r'/}"
+
+psql_exec() {
+  docker exec -i "$POSTGRES_CONTAINER" psql -v ON_ERROR_STOP=1 -U "$POSTGRES_SUPERUSER" -d "$DATABASE" "$@"
+}
+
+psql_exec -c "CREATE TABLE IF NOT EXISTS public.assistant_migration_history (migration_id TEXT PRIMARY KEY, applied_at_unix_millis BIGINT NOT NULL CHECK (applied_at_unix_millis > 0));"
+
+if [[ -n "${MIGRATION_BASELINE:-}" ]]; then
+  if [[ ! "$MIGRATION_BASELINE" =~ ^[0-9]{3}$ ]]; then
+    echo "migration runner: invalid MIGRATION_BASELINE" >&2
+    exit 1
+  fi
+  now_ms="$(date +%s%3N)"
+  for file in "$REPO_DIR"/database/migrations/[0-9][0-9][0-9]_*.sql; do
+    migration_id="$(basename "$file" .sql)"
+    number="${migration_id:0:3}"
+    if (( 10#$number <= 10#$MIGRATION_BASELINE )); then
+      psql_exec -c "INSERT INTO public.assistant_migration_history(migration_id, applied_at_unix_millis) VALUES ('$migration_id', $now_ms) ON CONFLICT (migration_id) DO NOTHING;"
+    fi
+  done
+fi
+
+for file in "$REPO_DIR"/database/migrations/[0-9][0-9][0-9]_*.sql; do
+  [[ -f "$file" ]] || continue
+  migration_id="$(basename "$file" .sql)"
+  applied="$(psql_exec -At -c "SELECT 1 FROM public.assistant_migration_history WHERE migration_id='$migration_id' LIMIT 1;")"
+  [[ "$applied" == "1" ]] && continue
+  psql_exec < "$file"
+  now_ms="$(date +%s%3N)"
+  psql_exec -c "INSERT INTO public.assistant_migration_history(migration_id, applied_at_unix_millis) VALUES ('$migration_id', $now_ms);"
+done

deploy/docker-compose.prod.yml

@@ -80,6 +80,11 @@ services:
       INTERACTION_POSTGRES_CREDENTIAL_REF: credential://domovoy/interaction/db-password/v1
       INTERACTION_POSTGRES_PASSWORD_FILE: /run/secrets/interaction_db_password
       SECRET_BACKEND_ROOT: /run/secrets
+      COGNITIVE_ADMISSION_POLICY_ID: creator-advisory-local-v1
+      COGNITIVE_ADMISSION_MAX_CONCURRENT: ${COGNITIVE_ADMISSION_MAX_CONCURRENT:-1}
+      COGNITIVE_ADMISSION_MAX_ACCEPTED_PER_HOUR: ${COGNITIVE_ADMISSION_MAX_ACCEPTED_PER_HOUR:-60}
+      COGNITIVE_ADMISSION_MAX_INPUT_BYTES: ${COGNITIVE_ADMISSION_MAX_INPUT_BYTES:-81920}
+      COGNITIVE_ADMISSION_MAX_OUTPUT_BYTES: ${COGNITIVE_ADMISSION_MAX_OUTPUT_BYTES:-16384}
     depends_on: { postgres: { condition: service_healthy } }
     volumes:
       - assistant_core_secrets:/run/secrets:ro
@@ -129,6 +134,25 @@ services:
     volumes:
       - assistant_core_secrets:/run/secrets:ro
 
+  research-runtime:
+    build: { context: .., dockerfile: deploy/images/runtime.Dockerfile, args: { TARGET: research-runtime, SOURCE_REVISION: "${ASSISTANT_SOURCE_REVISION:-unknown}" } }
+    restart: unless-stopped
+    environment:
+      LISTEN_ADDR: :8087
+      RESEARCH_SOURCE_ROOT: /var/lib/research-sources
+      RESEARCH_HTTP_ALLOWED_HOSTS: assistant.cin.su,git.cin.su
+      POSTGRES_HOST: postgres
+      POSTGRES_PORT: "5432"
+      POSTGRES_DATABASE: ${POSTGRES_DB:-assistant}
+      EPISTEMICS_POSTGRES_USER: epistemics_role
+      EPISTEMICS_POSTGRES_CREDENTIAL_REF: credential://domovoy/epistemics/db-password/v1
+      EPISTEMICS_POSTGRES_PASSWORD_FILE: /run/secrets/epistemics_db_password
+      SECRET_BACKEND_ROOT: /run/secrets
+    depends_on: { postgres: { condition: service_healthy } }
+    volumes:
+      - assistant_core_secrets:/run/secrets:ro
+      - assistant_research_sources:/var/lib/research-sources:ro
+
   continuity-runtime:
     build: { context: .., dockerfile: deploy/images/runtime.Dockerfile, args: { TARGET: continuity-runtime, SOURCE_REVISION: "${ASSISTANT_SOURCE_REVISION:-unknown}" } }
     restart: unless-stopped
@@ -237,5 +261,7 @@ volumes:
   assistant_notification_reader_secret:
     external: true
   llm_local_models:
-    external: true
     name: llm-local-models
+    external: true
+  assistant_research_sources:
+    name: assistant_research_sources

dev/ACTIVE_TASK.json

@@ -1,5 +1,5 @@
 {
-  "task_file": "dev/tasks/DEV-000139-production-worker-runtime.json",
-  "task_id": "DEV-000139",
-  "task_revision": 2
+  "task_file": "dev/tasks/DEV-000144-fleet-readiness-runtime.json",
+  "task_id": "DEV-000144",
+  "task_revision": 1
 }

dev/tasks/DEV-000115-cognitive-admission-control.json

@@ -1,23 +1,23 @@
 {
   "task_id": "DEV-000115",
-  "task_revision": 1,
+  "task_revision": 6,
   "architecture_revision": "ADR-0018",
-  "base_repo_revision": "e83cf35",
+  "base_repo_revision": "9b26260",
   "risk_tier": "E",
-  "intent": "Add a deterministic cognitive admission policy for concurrency, accepted/hour, deadline and input/output budgets without changing provider routing or bindings.",
-  "requirement_ids": ["WP-203", "Bounded concurrency/rate limits", "Explainable admission decision"],
-  "allowed_change_scope": {"modules": ["cognitive-admission"], "paths": ["contracts/capability/**", "modules/capability/domain/**", "tests/cognitive_admission/**", "dev/ACTIVE_TASK.json", "dev/tasks/DEV-000115-cognitive-admission-control.json"]},
-  "forbidden_change_scope": {"paths": ["architecture/**", "database/**", "migrations/**", "deploy/**", "security/**", "cmd/**", "runtime/**", "adapters/**", ".gitea/**"]},
-  "allowed_architecture_delta": {"new_cross_module_dependencies": 0, "new_canonical_owners": 0, "new_privileges": 0, "new_third_party_dependencies": 0, "new_database_owner_roles": 0},
-  "contracts": {"consume": ["Existing cognitive capability registry and LimitPolicyRef", "ADR-0006 bounded advisory boundary"], "may_change": ["Typed admission request/policy/decision contract"]},
+  "intent": "Run bounded cognitive admission as a durable capability-owner lease with restart recovery, while preserving provider routing and explicit fallback.",
+  "requirement_ids": ["WP-203", "Bounded concurrency/rate limits", "Durable admission lease", "Explainable admission decision"],
+  "allowed_change_scope": {"modules": ["cognitive-admission", "core-runtime", "cognitive-worker", "deployment"], "paths": ["contracts/capability/**", "adapters/postgres/capability_repository.go", "database/migrations/033_cognitive_admission_leases.sql", "cmd/core-runtime/main.go", "cmd/cognitive-worker/**", "deploy/docker-compose.prod.yml", "deploy/apply-migrations.sh", "tests/cognitive_admission/**", "dev/ACTIVE_TASK.json", "dev/tasks/DEV-000115-cognitive-admission-control.json"]},
+  "forbidden_change_scope": {"paths": ["architecture/**", "security/**", "modules/authority/**", "modules/work/**", ".gitea/**"]},
+  "allowed_architecture_delta": {"new_cross_module_dependencies": 0, "new_canonical_owners": 0, "new_privileges": 1, "new_third_party_dependencies": 0, "new_database_owner_roles": 1},
+  "contracts": {"consume": ["Existing cognitive capability registry and LimitPolicyRef", "ADR-0006 bounded advisory boundary", "capability-owned PostgreSQL schema"], "may_change": ["Typed admission request/policy/decision and lease contract"]},
   "semantic_owner": "capability-cognitive-admission",
-  "canonical_state": [],
-  "state_transitions": ["request + policy + observed counters -> admitted or typed rejection"],
-  "side_effects_and_privileges": ["Pure policy evaluation; no provider call, queue, persistence, binding mutation or external mutation"],
-  "persistence_and_migrations": ["No schema or migration changes"],
-  "failure_retry_restart": ["Rejected requests carry a reason; retry requires a fresh policy evaluation"],
-  "assumptions": ["Counters are supplied by a later durable admission implementation", "Policy does not choose or activate providers", "Deadline and budgets are request requirements"],
-  "acceptance_scenarios": ["Concurrency limit rejects excess request", "Accepted/hour limit rejects excess request", "Deadline and byte budget reject invalid request", "Admitted decision exposes reason and policy reference", "Simple/normal/heavy complexity remains a routing input, not authority"],
-  "required_tests": ["go test ./...", "go vet ./...", "go run ./cmd/devctl preflight -active dev/ACTIVE_TASK.json", "go run ./cmd/devctl check-diff -active dev/ACTIVE_TASK.json", "go run ./cmd/devctl check-architecture", "go run ./cmd/devctl/independent", "git diff --check", "admission policy tests"],
+  "canonical_state": ["capability.cognitive_admission_counters", "capability.cognitive_admission_leases"],
+  "state_transitions": ["request + policy + durable counters -> admitted lease or typed rejection", "active lease -> released/expired"],
+  "side_effects_and_privileges": ["Capability database role only; internal core endpoint; provider calls remain behind cognitive gateway"],
+  "persistence_and_migrations": ["database/migrations/033_cognitive_admission_leases.sql", "deploy/apply-migrations.sh records applied migration IDs and is idempotent"],
+  "failure_retry_restart": ["Expired leases are recovered on next admission transaction; duplicate request IDs are idempotent; rejected requests fall back locally"],
+  "assumptions": ["Core Runtime remains the capability-owner admission boundary", "Policy does not choose or activate providers", "Deadline and budgets are request requirements"],
+  "acceptance_scenarios": ["Concurrency limit rejects excess request", "Accepted/hour limit rejects excess request", "Deadline and byte budget reject invalid request", "Admitted decision exposes reason and policy reference", "expired lease does not permanently block after restart", "cognitive worker uses admission before provider and releases lease"],
+  "required_tests": ["go test ./...", "go vet ./...", "go run ./cmd/devctl preflight -active dev/ACTIVE_TASK.json", "go run ./cmd/devctl check-diff -active dev/ACTIVE_TASK.json", "go run ./cmd/devctl check-architecture", "go run ./cmd/devctl/independent", "git diff --check", "compose config", "admission policy and HTTP boundary tests"],
   "terminal_gap_states": ["BLOCKED_BY_MISSING_CAPABILITY", "BLOCKED_BY_SPEC_GAP", "BLOCKED_BY_CONFLICT"]
 }

dev/tasks/DEV-000140-research-evaluation-runtime.json

@@ -0,0 +1,23 @@
+{
+  "task_id": "DEV-000140",
+  "task_revision": 1,
+  "architecture_revision": "ADR-0018",
+  "base_repo_revision": "07a8de9",
+  "risk_tier": "E",
+  "intent": "Evaluate read-only research evidence into explicit supported, stale, conflicted or unknown findings without persistence or authority mutation.",
+  "requirement_ids": ["WP-102", "research evaluation", "citation provenance", "freshness", "conflict visibility"],
+  "allowed_change_scope": {"modules": ["epistemics-research-runtime"], "paths": ["contracts/epistemics/research.go", "modules/epistemics/domain/research.go", "modules/epistemics/application/research.go", "tests/research_runtime/**", "dev/ACTIVE_TASK.json", "dev/tasks/DEV-000140-research-evaluation-runtime.json"]},
+  "forbidden_change_scope": {"paths": ["architecture/**", "database/**", "deploy/**", "security/**", "cmd/**", ".gitea/**"]},
+  "allowed_architecture_delta": {"new_cross_module_dependencies": 0, "new_canonical_owners": 0, "new_privileges": 0, "new_third_party_dependencies": 0, "new_database_owner_roles": 0},
+  "contracts": {"consume": ["ADR-0019 typed source, snapshot, excerpt and citation contracts"], "may_change": ["typed research finding and read-only connector boundary"]},
+  "semantic_owner": "epistemics",
+  "canonical_state": [],
+  "state_transitions": ["connector evidence -> supported/stale/conflicted/unknown result", "invalid source chain -> rejected"],
+  "side_effects_and_privileges": ["read-only connector boundary; no external mutation; no claim persistence"],
+  "persistence_and_migrations": ["none"],
+  "failure_retry_restart": ["evaluation is pure and repeatable; connector failures remain errors"],
+  "assumptions": ["connectors provide immutable exact excerpts and source snapshots", "proposition keys are connector-supplied typed grouping keys"],
+  "acceptance_scenarios": ["no evidence remains UNKNOWN", "stale evidence is marked STALE", "incompatible statements remain CONFLICTED", "invalid citation chain is rejected", "connector boundary cannot mutate canonical state"],
+  "required_tests": ["go test ./...", "go vet ./...", "preflight", "check-diff", "check-architecture", "independent", "git diff --check", "research runtime tests"],
+  "terminal_gap_states": ["BLOCKED_BY_SPEC_GAP", "BLOCKED_BY_ARCHITECTURE_GAP", "BLOCKED_BY_CONFLICT"]
+}

dev/tasks/DEV-000141-optional-fleet-readiness.json

@@ -0,0 +1,23 @@
+{
+  "task_id": "DEV-000141",
+  "task_revision": 2,
+  "architecture_revision": "ADR-0018",
+  "base_repo_revision": "38cff16",
+  "risk_tier": "E",
+  "intent": "Keep cognitive readiness available when an optional opportunistic fleet member is unavailable while preserving typed degraded evidence.",
+  "requirement_ids": ["WP-003", "WP-203", "Fleet failover readiness"],
+  "allowed_change_scope": {"modules": ["runtime-health", "cognitive-worker"], "paths": ["runtime/health/**", "cmd/cognitive-worker/main.go", "runtime/health/server_test.go", "dev/ACTIVE_TASK.json", "dev/tasks/DEV-000141-optional-fleet-readiness.json"]},
+  "forbidden_change_scope": {"paths": ["architecture/**", "database/**", "deploy/**", "security/**", ".gitea/**"]},
+  "allowed_architecture_delta": {"new_cross_module_dependencies": 0, "new_canonical_owners": 0, "new_privileges": 0, "new_third_party_dependencies": 0, "new_database_owner_roles": 0},
+  "contracts": {"consume": ["Existing readiness Probe and typed readiness response"], "may_change": ["Optional dependency probe behavior"]},
+  "semantic_owner": "runtime-health and cognitive-worker",
+  "canonical_state": [],
+  "state_transitions": ["optional provider unavailable -> readiness remains ready with typed degraded check", "required dependency unavailable -> readiness remains degraded"],
+  "side_effects_and_privileges": ["No external mutation; no provider invocation"],
+  "persistence_and_migrations": ["None"],
+  "failure_retry_restart": ["Optional provider can recover on subsequent readiness probe"],
+  "assumptions": ["CPU/Lifeboat remains a qualified fallback when opportunistic GPU is unavailable"],
+  "acceptance_scenarios": ["GPU timeout does not hide degraded evidence or make fallback unavailable", "required dependency failure still returns 503"],
+  "required_tests": ["go test ./...", "go vet ./...", "preflight", "check-diff", "check-architecture", "independent", "git diff --check", "docker compose config"],
+  "terminal_gap_states": ["BLOCKED_BY_SPEC_GAP", "BLOCKED_BY_CONFLICT"]
+}

dev/tasks/DEV-000142-truth-bundle-persistence.json

@@ -0,0 +1,23 @@
+{
+  "task_id": "DEV-000142",
+  "task_revision": 1,
+  "architecture_revision": "ADR-0018",
+  "base_repo_revision": "0b321fe",
+  "risk_tier": "E",
+  "intent": "Persist typed Truth/Research bundles with exact source, snapshot, excerpt and citation provenance in the epistemics owner schema.",
+  "requirement_ids": ["WP-102", "Truth runtime", "Research provenance persistence"],
+  "allowed_change_scope": {"modules": ["epistemics", "database"], "paths": ["contracts/epistemics/truth.go", "modules/epistemics/domain/**", "adapters/postgres/epistemics_repository.go", "database/migrations/034_epistemics_truth_bundles.sql", "tests/research_contracts/**", "dev/ACTIVE_TASK.json", "dev/tasks/DEV-000142-truth-bundle-persistence.json"]},
+  "forbidden_change_scope": {"paths": ["architecture/**", "deploy/**", "security/**", "cmd/**", ".gitea/**"]},
+  "allowed_architecture_delta": {"new_cross_module_dependencies": 0, "new_canonical_owners": 0, "new_privileges": 1, "new_third_party_dependencies": 0, "new_database_owner_roles": 1},
+  "contracts": {"consume": ["TruthBundle, Source, SourceSnapshot, SourceExcerpt and Citation contracts"], "may_change": ["TruthBundle carries exact source evidence needed for durable provenance"]},
+  "semantic_owner": "epistemics",
+  "canonical_state": ["epistemics.truth_bundles"],
+  "state_transitions": ["compiled truth bundle -> durable append/update by exact citation identity"],
+  "side_effects_and_privileges": ["epistemics_role writes only epistemics.truth_bundles"],
+  "persistence_and_migrations": ["Migration 034; idempotent table/index creation"],
+  "failure_retry_restart": ["bundle write is idempotent by citation-derived bundle id"],
+  "assumptions": ["external connectors remain read-only and are a separate follow-up"],
+  "acceptance_scenarios": ["exact source chain is persisted", "duplicate bundle write is idempotent", "cross-owner schemas are untouched"],
+  "required_tests": ["go test ./...", "go vet ./...", "preflight", "check-diff", "check-architecture", "independent", "git diff --check", "docker compose config"],
+  "terminal_gap_states": ["BLOCKED_BY_SPEC_GAP", "BLOCKED_BY_CONFLICT", "REQUIRES_MIGRATION_DECISION"]
+}

dev/tasks/DEV-000143-research-runtime-orchestration.json

@@ -0,0 +1,23 @@
+{
+  "task_id": "DEV-000143",
+  "task_revision": 3,
+  "architecture_revision": "ADR-0018",
+  "base_repo_revision": "f9e2173",
+  "risk_tier": "E",
+  "intent": "Run a private research runtime that evaluates immutable connector evidence and durably persists exact TruthBundle provenance.",
+  "requirement_ids": ["WP-102", "Truth runtime", "Research persistence orchestration"],
+  "allowed_change_scope": {"modules": ["epistemics", "research-runtime", "deployment"], "paths": ["contracts/epistemics/research.go", "modules/epistemics/application/**", "adapters/postgres/epistemics_repository.go", "adapters/research/**", "cmd/research-runtime/**", "deploy/docker-compose.prod.yml", "tests/research_runtime/**", "dev/ACTIVE_TASK.json", "dev/tasks/DEV-000143-research-runtime-orchestration.json"]},
+  "forbidden_change_scope": {"paths": ["architecture/**", "database/**", "security/**", ".gitea/**"]},
+  "allowed_architecture_delta": {"new_cross_module_dependencies": 0, "new_canonical_owners": 0, "new_privileges": 1, "new_third_party_dependencies": 0, "new_database_owner_roles": 0},
+  "contracts": {"consume": ["ResearchEvaluationRequest, ResearchResult, TruthBundle and epistemics repository"], "may_change": ["Private persistence orchestration endpoint"]},
+  "semantic_owner": "epistemics",
+  "canonical_state": ["epistemics.truth_bundles"],
+  "state_transitions": ["repository/web source -> immutable digest/excerpt -> evaluated finding -> persisted provenance"],
+  "side_effects_and_privileges": ["epistemics_role writes through repository only; no source mutation or provider call"],
+  "persistence_and_migrations": ["Consumes migration 034 already in main"],
+  "failure_retry_restart": ["idempotent repository writes; runtime restart-safe"],
+  "assumptions": ["source fetching connectors are read-only callers and remain a separate package"],
+  "acceptance_scenarios": ["runtime ready with epistemics DB", "valid evidence is persisted", "invalid evidence is rejected", "no public compose port is exposed"],
+  "required_tests": ["go test ./...", "go vet ./...", "preflight", "check-diff", "check-architecture", "independent", "git diff --check", "docker compose config"],
+  "terminal_gap_states": ["BLOCKED_BY_SPEC_GAP", "BLOCKED_BY_CONFLICT", "REQUIRES_MIGRATION_DECISION"]
+}

dev/tasks/DEV-000144-fleet-readiness-runtime.json

@@ -0,0 +1,23 @@
+{
+  "task_id": "DEV-000144",
+  "task_revision": 1,
+  "architecture_revision": "ADR-0018",
+  "base_repo_revision": "23b04aa",
+  "risk_tier": "E",
+  "intent": "Expose explainable runtime fleet readiness and explicit fallback tier from live provider probes.",
+  "requirement_ids": ["WP-203", "WP-601", "Model fleet/failover"],
+  "allowed_change_scope": {"modules": ["capability", "cognitive-worker"], "paths": ["contracts/capability/fleet.go", "cmd/cognitive-worker/**", "tests/cognitive_registry/**", "dev/ACTIVE_TASK.json", "dev/tasks/DEV-000144-fleet-readiness-runtime.json"]},
+  "forbidden_change_scope": {"paths": ["architecture/**", "database/**", "deploy/**", "security/**", ".gitea/**"]},
+  "allowed_architecture_delta": {"new_cross_module_dependencies": 0, "new_canonical_owners": 0, "new_privileges": 0, "new_third_party_dependencies": 0, "new_database_owner_roles": 0},
+  "contracts": {"consume": ["FleetReadiness and SelectFleetTier"], "may_change": ["JSON projection and live probe endpoint"]},
+  "semantic_owner": "capability and cognitive-worker",
+  "canonical_state": [],
+  "state_transitions": ["live provider probes -> typed member states -> preferred tier or explicit Lifeboat fallback"],
+  "side_effects_and_privileges": ["Read-only HTTP probes only"],
+  "persistence_and_migrations": ["None"],
+  "failure_retry_restart": ["Each request re-probes providers; no in-memory health authority"],
+  "assumptions": ["Lifeboat is the explicit fallback tier"],
+  "acceptance_scenarios": ["unavailable CPU/GPU selects Lifeboat", "unconfigured Medium is visible", "no fallback returns typed 503"],
+  "required_tests": ["go test ./...", "go vet ./...", "preflight", "check-diff", "check-architecture", "independent", "git diff --check", "docker compose config"],
+  "terminal_gap_states": ["BLOCKED_BY_SPEC_GAP", "BLOCKED_BY_CONFLICT"]
+}

modules/epistemics/application/persisted_research.go

@@ -0,0 +1,40 @@
+package application
+
+import (
+	"context"
+
+	"git.cin.su/m/Assistant/contracts/epistemics"
+	domain "git.cin.su/m/Assistant/modules/epistemics/domain"
+)
+
+type TruthBundleStore interface {
+	SaveTruthBundle(context.Context, epistemics.TruthBundle, int64) error
+}
+
+// EvaluateAndPersist evaluates only supplied immutable connector evidence and
+// persists the exact source chain used by each candidate. It never performs a
+// network fetch and never promotes a belief to verified state.
+func EvaluateAndPersist(ctx context.Context, request epistemics.ResearchEvaluationRequest, store TruthBundleStore, evaluatedAtUnixMillis int64) (epistemics.ResearchResult, error) {
+	result, err := (ResearchService{Connector: staticConnector{candidates: request.Candidates}}).Evaluate(ctx, request.Plan, evaluatedAtUnixMillis)
+	if err != nil {
+		return epistemics.ResearchResult{}, err
+	}
+	for _, candidate := range request.Candidates {
+		bundle, err := domain.CompileObservedClaim(candidate.Source, candidate.Snapshot, candidate.Excerpt, candidate.Statement, candidate.Snapshot.CapturedAtUnixMillis, candidate.Conflict)
+		if err != nil {
+			return epistemics.ResearchResult{}, err
+		}
+		if err := store.SaveTruthBundle(ctx, bundle, evaluatedAtUnixMillis); err != nil {
+			return epistemics.ResearchResult{}, err
+		}
+	}
+	return result, nil
+}
+
+type staticConnector struct {
+	candidates []epistemics.ResearchCandidate
+}
+
+func (c staticConnector) Collect(context.Context, epistemics.ResearchPlan) ([]epistemics.ResearchCandidate, error) {
+	return c.candidates, nil
+}

modules/epistemics/application/research.go

@@ -0,0 +1,27 @@
+package application
+
+import (
+	"context"
+
+	"git.cin.su/m/Assistant/contracts/epistemics"
+	domain "git.cin.su/m/Assistant/modules/epistemics/domain"
+)
+
+// ReadOnlyConnector is the only integration point for web/repository sources.
+// Implementations return immutable evidence; they cannot persist claims.
+type ReadOnlyConnector interface {
+	Collect(context.Context, epistemics.ResearchPlan) ([]epistemics.ResearchCandidate, error)
+}
+
+type ResearchService struct{ Connector ReadOnlyConnector }
+
+func (s ResearchService) Evaluate(ctx context.Context, plan epistemics.ResearchPlan, nowUnixMillis int64) (epistemics.ResearchResult, error) {
+	if s.Connector == nil {
+		return epistemics.ResearchResult{}, domain.ErrNoResearchEvidence
+	}
+	candidates, err := s.Connector.Collect(ctx, plan)
+	if err != nil {
+		return epistemics.ResearchResult{}, err
+	}
+	return domain.EvaluateResearch(plan, candidates, nowUnixMillis)
+}

modules/epistemics/domain/research.go

@@ -0,0 +1,110 @@
+package domain
+
+import (
+	"errors"
+	"strings"
+
+	"git.cin.su/m/Assistant/contracts/epistemics"
+)
+
+var (
+	ErrInvalidResearchPlan      = errors.New("invalid research plan")
+	ErrInvalidResearchCandidate = errors.New("invalid research candidate")
+	ErrNoResearchEvidence       = errors.New("no research evidence")
+)
+
+// EvaluateResearch turns connector evidence into an explainable, non-canonical
+// result. It is deliberately pure: it does not call a provider, persist a
+// claim, or promote an assessment into authority.
+func EvaluateResearch(plan epistemics.ResearchPlan, candidates []epistemics.ResearchCandidate, evaluatedAtUnixMillis int64) (epistemics.ResearchResult, error) {
+	if err := plan.Validate(); err != nil || evaluatedAtUnixMillis < 1 {
+		return epistemics.ResearchResult{}, ErrInvalidResearchPlan
+	}
+	result := epistemics.ResearchResult{PlanID: plan.ID, EvaluatedAtUnixMillis: evaluatedAtUnixMillis}
+	if len(candidates) == 0 {
+		result.Findings = []epistemics.ResearchFinding{{State: epistemics.FindingUnknown, Reason: "no connector evidence was returned"}}
+		return result, nil
+	}
+
+	groups := make(map[string][]epistemics.ResearchCandidate)
+	order := make([]string, 0, len(candidates))
+	for _, candidate := range candidates {
+		if strings.TrimSpace(candidate.PropositionKey) == "" || strings.TrimSpace(candidate.Statement) == "" || candidate.Evidence == "" {
+			return epistemics.ResearchResult{}, ErrInvalidResearchCandidate
+		}
+		if _, exists := groups[candidate.PropositionKey]; !exists {
+			order = append(order, candidate.PropositionKey)
+		}
+		groups[candidate.PropositionKey] = append(groups[candidate.PropositionKey], candidate)
+	}
+
+	for _, key := range order {
+		finding, err := evaluateGroup(key, groups[key], evaluatedAtUnixMillis)
+		if err != nil {
+			return epistemics.ResearchResult{}, err
+		}
+		result.Findings = append(result.Findings, finding)
+	}
+	return result, nil
+}
+
+func evaluateGroup(key string, candidates []epistemics.ResearchCandidate, evaluatedAt int64) (epistemics.ResearchFinding, error) {
+	if len(candidates) == 0 {
+		return epistemics.ResearchFinding{}, ErrNoResearchEvidence
+	}
+	first := candidates[0]
+	firstBundle, err := compileResearchCandidate(first)
+	if err != nil {
+		return epistemics.ResearchFinding{}, ErrInvalidResearchCandidate
+	}
+	finding := epistemics.ResearchFinding{PropositionKey: key, Statement: first.Statement, Claim: firstBundle.Claim, Citations: []epistemics.Citation{firstBundle.Citation}, State: epistemics.FindingSupported}
+	statements := map[string]struct{}{normalize(first.Statement): {}}
+	if first.Snapshot.Freshness == epistemics.FreshnessUnknown || first.Evidence == epistemics.EvidenceAssumed || first.Coverage != epistemics.CoverageComplete {
+		finding.State, finding.Reason = epistemics.FindingUnknown, "evidence is assumed, unknown or incomplete"
+	} else if first.Snapshot.Freshness == epistemics.FreshnessStale {
+		finding.State, finding.Reason = epistemics.FindingStale, "source snapshot is stale"
+	}
+	for _, candidate := range candidates[1:] {
+		bundle, resolveErr := compileResearchCandidate(candidate)
+		if resolveErr != nil {
+			return epistemics.ResearchFinding{}, ErrInvalidResearchCandidate
+		}
+		finding.Citations = append(finding.Citations, bundle.Citation)
+		statements[normalize(candidate.Statement)] = struct{}{}
+		if candidate.Snapshot.Freshness == epistemics.FreshnessUnknown || candidate.Evidence == epistemics.EvidenceAssumed || candidate.Coverage != epistemics.CoverageComplete {
+			finding.State, finding.Reason = epistemics.FindingUnknown, "at least one source has assumed, unknown or incomplete evidence"
+		} else if candidate.Snapshot.Freshness == epistemics.FreshnessStale {
+			finding.State, finding.Reason = epistemics.FindingStale, "at least one source snapshot is stale"
+		}
+	}
+	if len(statements) > 1 {
+		finding.State, finding.Reason = epistemics.FindingConflicted, "connector evidence contains incompatible statements"
+	}
+	for _, citation := range finding.Citations {
+		if citation.Conflict == epistemics.ConflictPresent {
+			finding.State, finding.Reason = epistemics.FindingConflicted, "connector marked evidence as conflicting"
+		}
+	}
+	if len(finding.Citations) == 0 || evaluatedAt < 1 {
+		return epistemics.ResearchFinding{}, ErrInvalidResearchCandidate
+	}
+	return finding, nil
+}
+
+func normalize(value string) string { return strings.ToLower(strings.Join(strings.Fields(value), " ")) }
+
+// candidateConflict keeps unknown source freshness explicit at the candidate
+// boundary. A connector may mark evidence as conflicting without changing the
+// source; group-level incompatible statements are detected separately.
+func compileResearchCandidate(candidate epistemics.ResearchCandidate) (epistemics.TruthBundle, error) {
+	if candidate.Coverage == "" || candidate.Conflict == "" {
+		return epistemics.TruthBundle{}, ErrInvalidResearchCandidate
+	}
+	citation, err := epistemics.ResolveCitation(candidate.Source, candidate.Snapshot, candidate.Excerpt, candidate.Evidence, candidate.Coverage, candidate.Conflict, candidate.Snapshot.CapturedAtUnixMillis)
+	if err != nil {
+		return epistemics.TruthBundle{}, err
+	}
+	observation := epistemics.Observation{ID: epistemics.ObservationID("observation:" + string(candidate.Excerpt.ID)), SourceSnapshot: candidate.Snapshot.ID, Excerpt: candidate.Excerpt.ID, Text: candidate.Excerpt.Text, ObservedAt: candidate.Snapshot.CapturedAtUnixMillis}
+	claim := epistemics.Claim{ID: epistemics.ClaimID("claim:" + string(candidate.Excerpt.ID)), Statement: candidate.Statement, ObservationID: observation.ID, CitationID: citation.ID, Verification: epistemics.VerificationUnverified}
+	return epistemics.TruthBundle{Source: candidate.Source, Snapshot: candidate.Snapshot, Excerpt: candidate.Excerpt, Observation: observation, Claim: claim, Belief: epistemics.Belief{ID: epistemics.BeliefID("belief:" + string(candidate.Excerpt.ID)), ClaimID: claim.ID, State: epistemics.BeliefProvisional}, Citation: citation}, nil
+}

modules/epistemics/domain/truth.go

@@ -23,7 +23,7 @@ func CompileObservedClaim(source epistemics.Source, snapshot epistemics.SourceSn
 	if conflict == epistemics.ConflictPresent || conflict == epistemics.ConflictUnknown {
 		state = epistemics.BeliefConflicted
 	}
-	bundle := epistemics.TruthBundle{Observation: observation, Claim: claim, Belief: epistemics.Belief{ID: epistemics.BeliefID("belief:" + string(excerpt.ID)), ClaimID: claim.ID, State: state}, Citation: citation}
+	bundle := epistemics.TruthBundle{Source: source, Snapshot: snapshot, Excerpt: excerpt, Observation: observation, Claim: claim, Belief: epistemics.Belief{ID: epistemics.BeliefID("belief:" + string(excerpt.ID)), ClaimID: claim.ID, State: state}, Citation: citation}
 	if bundle.Observation.SourceSnapshot != snapshot.ID || bundle.Claim.ObservationID != bundle.Observation.ID || bundle.Claim.CitationID != bundle.Citation.ID || bundle.Belief.ClaimID != bundle.Claim.ID {
 		return epistemics.TruthBundle{}, ErrInvalidTruthBundle
 	}

runtime/health/server.go

@@ -26,8 +26,9 @@ func (h Handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 }
 
 type Probe struct {
-	Name  string
-	Check func(context.Context) error
+	Name     string
+	Check    func(context.Context) error
+	Optional bool
 }
 
 type Result struct {
@@ -59,11 +60,13 @@ func (h ReadinessHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			err := probe.Check(ctx)
 			cancel()
 			if err != nil {
-				ready = false
 				result.State, result.Reason, result.Detail = "DEGRADED", "DEPENDENCY_UNAVAILABLE", err.Error()
+				if !probe.Optional {
+					ready = false
+				}
 			}
 		}
-		if result.State != "READY" {
+		if result.State != "READY" && !probe.Optional {
 			ready = false
 		}
 		results = append(results, result)
@@ -96,6 +99,15 @@ func HTTPProbe(client *http.Client, endpoint string) Probe {
 	}}
 }
 
+// OptionalHTTPProbe reports dependency degradation without making the whole
+// runtime unavailable. This is used for opportunistic fleet members when a
+// qualified local fallback remains available.
+func OptionalHTTPProbe(client *http.Client, endpoint string) Probe {
+	probe := HTTPProbe(client, endpoint)
+	probe.Optional = true
+	return probe
+}
+
 func TCPProbe(name, host, port string) Probe {
 	return Probe{Name: name, Check: func(ctx context.Context) error {
 		connection, err := (&net.Dialer{}).DialContext(ctx, "tcp", net.JoinHostPort(host, port))

runtime/health/server_test.go

@@ -26,3 +26,16 @@ func TestReadinessReturns200WhenAllProbesPass(t *testing.T) {
 		t.Fatalf("readiness response = %d %s", recorder.Code, recorder.Body.String())
 	}
 }
+
+func TestReadinessStaysAvailableWithOptionalDependencyDegraded(t *testing.T) {
+	handler := ReadinessHandler{Runtime: "test", Probes: []Probe{
+		{Name: "lifeboat", Check: func(context.Context) error { return nil }},
+		{Name: "opportunistic-gpu", Optional: true, Check: func(context.Context) error { return errors.New("timeout") }},
+	}}
+	recorder := httptest.NewRecorder()
+	handler.ServeHTTP(recorder, httptest.NewRequest(http.MethodGet, "/readyz", nil))
+	body := recorder.Body.String()
+	if recorder.Code != http.StatusOK || !strings.Contains(body, `"status":"ready"`) || !strings.Contains(body, `"state":"DEGRADED"`) {
+		t.Fatalf("readiness response = %d %s", recorder.Code, body)
+	}
+}

tests/cognitive_admission/admission_test.go

@@ -1,6 +1,8 @@
 package cognitive_admission_test
 
 import (
+	"encoding/json"
+	"strings"
 	"testing"
 
 	"git.cin.su/m/Assistant/contracts/capability"
@@ -26,6 +28,13 @@ func TestAdmitReturnsExplainableDecision(t *testing.T) {
 	}
 }
 
+func TestAdmissionRequestUsesStableWireFields(t *testing.T) {
+	raw, err := json.Marshal(capability.AdmissionRequest{Complexity: capability.AdmissionNormal, InputBytes: 10, MaxOutputBytes: 20, DeadlineMillis: 30})
+	if err != nil || !strings.Contains(string(raw), `"input_bytes":10`) || !strings.Contains(string(raw), `"max_output_bytes":20`) || !strings.Contains(string(raw), `"deadline_millis":30`) {
+		t.Fatalf("admission wire shape drifted: %s %v", raw, err)
+	}
+}
+
 func TestAdmitRejectsBudgetAndDeadline(t *testing.T) {
 	policy := capability.AdmissionPolicy{ID: "local-v1", MaxConcurrent: 1, MaxAcceptedPerHour: 1, MaxInputBytes: 10, MaxOutputBytes: 10}
 	if decision := capability.Admit(capability.AdmissionRequest{InputBytes: 11, MaxOutputBytes: 1}, policy, capability.AdmissionCounters{}, 1); decision.Reason != capability.AdmissionReasonInputBudget {

tests/research_contracts/truth_persistence_sql_test.go

@@ -0,0 +1,26 @@
+package research_contracts_test
+
+import (
+	"os"
+	"strings"
+	"testing"
+)
+
+func TestTruthBundlePersistenceMigrationIsOwnedAndIdempotent(t *testing.T) {
+	payload, err := os.ReadFile("../../database/migrations/034_epistemics_truth_bundles.sql")
+	if err != nil {
+		t.Fatal(err)
+	}
+	script := string(payload)
+	for _, required := range []string{
+		"SET ROLE epistemics_role",
+		"CREATE TABLE IF NOT EXISTS epistemics.truth_bundles",
+		"UNIQUE (snapshot_id, excerpt_id, claim_id)",
+		"CREATE INDEX IF NOT EXISTS truth_bundles_source_time_idx",
+		"RESET ROLE",
+	} {
+		if !strings.Contains(script, required) {
+			t.Fatalf("migration missing %q", required)
+		}
+	}
+}

tests/research_runtime/http_connector_test.go

@@ -0,0 +1,20 @@
+package research_runtime_test
+
+import (
+	"context"
+	"testing"
+
+	researchadapter "git.cin.su/m/Assistant/adapters/research"
+	"git.cin.su/m/Assistant/contracts/epistemics"
+)
+
+func TestHTTPConnectorRejectsNonAllowlistedOrNonHTTPSSources(t *testing.T) {
+	connector := researchadapter.HTTPConnector{AllowedHosts: map[string]struct{}{"assistant.cin.su": {}}}
+	base := epistemics.WebResearchRequest{Plan: epistemics.ResearchPlan{ID: "plan", Question: "q", SourceClasses: []string{"web"}, FreshnessPolicy: "current"}, SourceID: "s", Statement: "statement"}
+	for _, url := range []string{"http://assistant.cin.su/healthz", "https://127.0.0.1/secret", "https://evil.example/"} {
+		base.URL = url
+		if _, err := connector.Collect(context.Background(), base, 10); err != researchadapter.ErrHTTPSourceRejected {
+			t.Fatalf("url=%s err=%v", url, err)
+		}
+	}
+}

tests/research_runtime/persisted_research_test.go

@@ -0,0 +1,29 @@
+package research_runtime_test
+
+import (
+	"context"
+	"testing"
+
+	"git.cin.su/m/Assistant/contracts/epistemics"
+	"git.cin.su/m/Assistant/modules/epistemics/application"
+)
+
+type store struct{ saved []epistemics.TruthBundle }
+
+func (s *store) SaveTruthBundle(_ context.Context, value epistemics.TruthBundle, _ int64) error {
+	s.saved = append(s.saved, value)
+	return nil
+}
+
+func TestEvaluateAndPersistStoresExactCandidateChain(t *testing.T) {
+	candidate := epistemics.ResearchCandidate{
+		PropositionKey: "p1", Statement: "fact", Source: epistemics.Source{ID: "source-1", Kind: "repo", Locator: "file:///repo/doc", Title: "doc"},
+		Snapshot: epistemics.SourceSnapshot{ID: "snapshot-1", SourceID: "source-1", ContentDigest: "sha256:x", CapturedAtUnixMillis: 10, Freshness: epistemics.FreshnessCurrent},
+		Excerpt:  epistemics.SourceExcerpt{ID: "excerpt-1", SnapshotID: "snapshot-1", Text: "fact", Start: 0, End: 4}, Evidence: epistemics.EvidenceObserved, Coverage: epistemics.CoverageComplete, Conflict: epistemics.ConflictNone,
+	}
+	store := &store{}
+	result, err := application.EvaluateAndPersist(context.Background(), epistemics.ResearchEvaluationRequest{Plan: epistemics.ResearchPlan{ID: "plan-1", Question: "q", SourceClasses: []string{"repo"}, FreshnessPolicy: "current"}, Candidates: []epistemics.ResearchCandidate{candidate}}, store, 20)
+	if err != nil || len(result.Findings) != 1 || len(store.saved) != 1 || store.saved[0].Excerpt.ID != candidate.Excerpt.ID || store.saved[0].Source.Locator != candidate.Source.Locator {
+		t.Fatalf("result=%#v saved=%#v err=%v", result, store.saved, err)
+	}
+}

tests/research_runtime/repository_connector_test.go

@@ -0,0 +1,28 @@
+package research_runtime_test
+
+import (
+	"context"
+	"os"
+	"path/filepath"
+	"testing"
+
+	researchadapter "git.cin.su/m/Assistant/adapters/research"
+	"git.cin.su/m/Assistant/contracts/epistemics"
+)
+
+func TestRepositoryConnectorReturnsDigestAndExactExcerpt(t *testing.T) {
+	root := t.TempDir()
+	if err := os.WriteFile(filepath.Join(root, "evidence.txt"), []byte("exact repository evidence"), 0600); err != nil {
+		t.Fatal(err)
+	}
+	candidate, err := (researchadapter.RepositoryConnector{Root: root}).Collect(context.Background(), epistemics.RepositoryResearchRequest{Plan: epistemics.ResearchPlan{ID: "plan", Question: "q", SourceClasses: []string{"repository"}, FreshnessPolicy: "current"}, PropositionKey: "p", SourceID: "s", Path: "evidence.txt", Statement: "statement"}, 10)
+	if err != nil || candidate.Excerpt.Text != "exact repository evidence" || candidate.Snapshot.ContentDigest[:7] != "sha256:" || candidate.Excerpt.SnapshotID != candidate.Snapshot.ID {
+		t.Fatalf("candidate=%#v err=%v", candidate, err)
+	}
+}
+
+func TestRepositoryConnectorRejectsPathTraversal(t *testing.T) {
+	if _, err := (researchadapter.RepositoryConnector{Root: t.TempDir()}).Collect(context.Background(), epistemics.RepositoryResearchRequest{Plan: epistemics.ResearchPlan{ID: "plan", Question: "q", SourceClasses: []string{"repository"}, FreshnessPolicy: "current"}, SourceID: "s", Path: "../secret", Statement: "statement"}, 10); err != researchadapter.ErrRepositoryPathRejected {
+		t.Fatalf("path traversal error=%v", err)
+	}
+}

tests/research_runtime/research_runtime_test.go

@@ -0,0 +1,66 @@
+package research_runtime_test
+
+import (
+	"context"
+	"testing"
+
+	"git.cin.su/m/Assistant/contracts/epistemics"
+	app "git.cin.su/m/Assistant/modules/epistemics/application"
+	domain "git.cin.su/m/Assistant/modules/epistemics/domain"
+)
+
+type connector struct {
+	candidates []epistemics.ResearchCandidate
+}
+
+func (c connector) Collect(context.Context, epistemics.ResearchPlan) ([]epistemics.ResearchCandidate, error) {
+	return c.candidates, nil
+}
+
+func candidate(statement string, freshness epistemics.FreshnessState, source, snapshot, excerpt string) epistemics.ResearchCandidate {
+	return epistemics.ResearchCandidate{PropositionKey: "domovoy", Statement: statement, Evidence: epistemics.EvidenceObserved,
+		Coverage: epistemics.CoverageComplete, Conflict: epistemics.ConflictNone,
+		Source:   epistemics.Source{ID: epistemics.SourceID(source), Locator: "https://example.test/" + source},
+		Snapshot: epistemics.SourceSnapshot{ID: epistemics.SourceSnapshotID(snapshot), SourceID: epistemics.SourceID(source), ContentDigest: "sha256:" + snapshot, CapturedAtUnixMillis: 10, Freshness: freshness},
+		Excerpt:  epistemics.SourceExcerpt{ID: epistemics.SourceExcerptID(excerpt), SnapshotID: epistemics.SourceSnapshotID(snapshot), Text: statement, Start: 0, End: int64(len(statement))}}
+}
+
+func TestResearchServiceKeepsUnknownStaleAndConflictExplicit(t *testing.T) {
+	plan := epistemics.ResearchPlan{ID: "plan-1", Question: "question", SourceClasses: []string{"repository"}, FreshnessPolicy: "current"}
+	unknown, err := (app.ResearchService{Connector: connector{}}).Evaluate(context.Background(), plan, 100)
+	if err != nil || len(unknown.Findings) != 1 || unknown.Findings[0].State != epistemics.FindingUnknown {
+		t.Fatalf("unknown evidence was not explicit: %#v %v", unknown, err)
+	}
+	result, err := (app.ResearchService{Connector: connector{candidates: []epistemics.ResearchCandidate{
+		candidate("one answer", epistemics.FreshnessStale, "s1", "ss1", "e1"),
+		candidate("another answer", epistemics.FreshnessCurrent, "s2", "ss2", "e2"),
+	}}}).Evaluate(context.Background(), plan, 100)
+	if err != nil || len(result.Findings) != 1 || result.Findings[0].State != epistemics.FindingConflicted || len(result.Findings[0].Citations) != 2 {
+		t.Fatalf("conflict was not retained: %#v %v", result, err)
+	}
+}
+
+func TestEvaluateResearchRejectsFabricatedEvidenceChain(t *testing.T) {
+	value := candidate("answer", epistemics.FreshnessCurrent, "s1", "ss1", "e1")
+	value.Excerpt.SnapshotID = "other-snapshot"
+	plan := epistemics.ResearchPlan{ID: "plan-1", Question: "question", SourceClasses: []string{"web"}, FreshnessPolicy: "current"}
+	if _, err := domain.EvaluateResearch(plan, []epistemics.ResearchCandidate{value}, 100); err != domain.ErrInvalidResearchCandidate {
+		t.Fatalf("fabricated evidence was accepted: %v", err)
+	}
+}
+
+func TestResearchServiceKeepsAssumptionAndUnknownFreshnessVisible(t *testing.T) {
+	plan := epistemics.ResearchPlan{ID: "plan-1", Question: "question", SourceClasses: []string{"web"}, FreshnessPolicy: "current"}
+	value := candidate("assumed answer", epistemics.FreshnessCurrent, "s1", "ss1", "e1")
+	value.Evidence = epistemics.EvidenceAssumed
+	result, err := (app.ResearchService{Connector: connector{candidates: []epistemics.ResearchCandidate{value}}}).Evaluate(context.Background(), plan, 100)
+	if err != nil || result.Findings[0].State != epistemics.FindingUnknown {
+		t.Fatalf("assumption was promoted: %#v %v", result, err)
+	}
+	value = candidate("unknown answer", epistemics.FreshnessUnknown, "s2", "ss2", "e2")
+	value.Conflict = epistemics.ConflictUnknown
+	result, err = (app.ResearchService{Connector: connector{candidates: []epistemics.ResearchCandidate{value}}}).Evaluate(context.Background(), plan, 100)
+	if err != nil || result.Findings[0].State != epistemics.FindingUnknown {
+		t.Fatalf("unknown freshness was promoted: %#v %v", result, err)
+	}
+}