fix(facts): fold visibility tier into hot-memory meta cache key

trustedFactReads is re-read from config on every stdio tool call, so the
reader's visibility tier can now flip within one server process. The
meta-hook cache key (source, session, allow-list hash) didn't capture it,
so a mid-session opt-out of facts.trust_local_reads could keep serving a
private-inclusive cached payload for the 30s TTL. Compute the visibility
filter before the cache lookup and append the tier to the key, restoring
the header's cross-tier no-bleed invariant.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

llms-full.txt

@@ -1411,8 +1411,7 @@ This is the dispatcher. Skills are the implementation. **Read the skill file bef
 | "get more out of gbrain", "is my brain set up right", "weekly brain checkup", "advise me on my brain", "gbrain advisor" | `skills/gbrain-advisor/SKILL.md` |
 | Save or load reports | `skills/reports/SKILL.md` |
 | "Create a skill", "improve this skill" | `skills/skill-creator/SKILL.md` |
-| "save this learning to the vault", "capture this skill in Obsidian", "record this workflow in my notes", "put this setup change in the vault" | `skills/skill-vault-capture-policy/SKILL.md` |
-| "Skillify this", "is this a skill?", "make this proper", "add tests and evals for this" | `skills/skillify/SKILL.md` |
+| "Skillify this", "is this a skill?", "make this proper" | `skills/skillify/SKILL.md` |
 | "Compress my resolver", "AGENTS.md too large", "RESOLVER.md too big", "functional area dispatcher", "shrink routing table" | `skills/functional-area-resolver/SKILL.md` |
 | "Is gbrain healthy?", morning health check, skillpack-check | `skills/skillpack-check/SKILL.md` |
 | "harvest this skill into gbrain", "publish this skill to gbrain", "lift this skill upstream", "share this skill with other gbrain clients", "promote my skill to gbrain" | `skills/skillpack-harvest/SKILL.md` |
@@ -1430,7 +1429,6 @@ This is the dispatcher. Skills are the implementation. **Read the skill file bef
 | "Set up GBrain", first boot | `skills/setup/SKILL.md` |
 | "Now what?", "fill my brain", "cold start", "bootstrap", "import my data", "what should I import first" | `skills/cold-start/SKILL.md` |
 | "Migrate from Obsidian/Notion/Logseq" | `skills/migrate/SKILL.md` |
-| "Connect Obsidian to gbrain", "import my vault to gbrain", "sync vault and gbrain", "embed gbrain after vault update", "is gbrain synced with my vault" | `skills/obsidian-gbrain-safe-index/SKILL.md` |
 | Brain health check, maintenance run | `skills/maintain/SKILL.md` |
 | "Extract links", "build link graph", "populate timeline" | `skills/maintain/SKILL.md` (extraction sections) |
 | "Run dream", "process today's session", "synthesize my conversations", "consolidate yesterday's conversations", "what patterns did you see", "did the dream cycle run" | `skills/maintain/SKILL.md` (dream cycle section) |

openclaw.plugin.json

@@ -39,8 +39,8 @@
     "skills/briefing",
     "skills/citation-fixer",
     "skills/concept-synthesis",
-    "skills/cron-scheduler",
     "skills/cross-modal-review",
+    "skills/cron-scheduler",
     "skills/daily-task-manager",
     "skills/daily-task-prep",
     "skills/data-research",
@@ -54,11 +54,10 @@
     "skills/media-ingest",
     "skills/meeting-ingestion",
     "skills/minion-orchestrator",
-    "skills/obsidian-gbrain-safe-index",
     "skills/perplexity-research",
     "skills/query",
-    "skills/repo-architecture",
     "skills/reports",
+    "skills/repo-architecture",
     "skills/signal-detector",
     "skills/skill-creator",
     "skills/skillify",

skills/RESOLVER.md

@@ -60,8 +60,7 @@ This is the dispatcher. Skills are the implementation. **Read the skill file bef
 | "get more out of gbrain", "is my brain set up right", "weekly brain checkup", "advise me on my brain", "gbrain advisor" | `skills/gbrain-advisor/SKILL.md` |
 | Save or load reports | `skills/reports/SKILL.md` |
 | "Create a skill", "improve this skill" | `skills/skill-creator/SKILL.md` |
-| "save this learning to the vault", "capture this skill in Obsidian", "record this workflow in my notes", "put this setup change in the vault" | `skills/skill-vault-capture-policy/SKILL.md` |
-| "Skillify this", "is this a skill?", "make this proper", "add tests and evals for this" | `skills/skillify/SKILL.md` |
+| "Skillify this", "is this a skill?", "make this proper" | `skills/skillify/SKILL.md` |
 | "Compress my resolver", "AGENTS.md too large", "RESOLVER.md too big", "functional area dispatcher", "shrink routing table" | `skills/functional-area-resolver/SKILL.md` |
 | "Is gbrain healthy?", morning health check, skillpack-check | `skills/skillpack-check/SKILL.md` |
 | "harvest this skill into gbrain", "publish this skill to gbrain", "lift this skill upstream", "share this skill with other gbrain clients", "promote my skill to gbrain" | `skills/skillpack-harvest/SKILL.md` |
@@ -79,7 +78,6 @@ This is the dispatcher. Skills are the implementation. **Read the skill file bef
 | "Set up GBrain", first boot | `skills/setup/SKILL.md` |
 | "Now what?", "fill my brain", "cold start", "bootstrap", "import my data", "what should I import first" | `skills/cold-start/SKILL.md` |
 | "Migrate from Obsidian/Notion/Logseq" | `skills/migrate/SKILL.md` |
-| "Connect Obsidian to gbrain", "import my vault to gbrain", "sync vault and gbrain", "embed gbrain after vault update", "is gbrain synced with my vault" | `skills/obsidian-gbrain-safe-index/SKILL.md` |
 | Brain health check, maintenance run | `skills/maintain/SKILL.md` |
 | "Extract links", "build link graph", "populate timeline" | `skills/maintain/SKILL.md` (extraction sections) |
 | "Run dream", "process today's session", "synthesize my conversations", "consolidate yesterday's conversations", "what patterns did you see", "did the dream cycle run" | `skills/maintain/SKILL.md` (dream cycle section) |

skills/manifest.json

@@ -2,7 +2,7 @@
   "name": "gbrain",
   "version": "0.32.3.0",
   "conformance_version": "1.0.0",
-  "description": "Personal knowledge brain with hybrid RAG search — GStack mod for agent platforms",
+  "description": "Personal knowledge brain with hybrid RAG search \u2014 GStack mod for agent platforms",
   "skills": [
     {
       "name": "ingest",
@@ -34,11 +34,6 @@
       "path": "migrate/SKILL.md",
       "description": "Universal migration from Obsidian, Notion, Logseq, markdown, CSV, JSON, Roam"
     },
-    {
-      "name": "obsidian-gbrain-safe-index",
-      "path": "obsidian-gbrain-safe-index/SKILL.md",
-      "description": "Connect and sync an Obsidian-style Markdown vault with gbrain using a cost-controlled import-first workflow, explicit embedding gates, and durable skill/workflow capture."
-    },
     {
       "name": "setup",
       "path": "setup/SKILL.md",
@@ -268,11 +263,6 @@
       "name": "skill-optimizer",
       "path": "skill-optimizer/SKILL.md",
       "description": "Self-evolving skill optimization via gbrain skillopt — SkillOpt-paper-grounded text-space optimizer with validation gating (median-of-3 + epsilon=0.05), bundled-skill safety, bootstrap review sentinel, per-skill DB lock, and atomic versioned writes."
-    },
-    {
-      "name": "skill-vault-capture-policy",
-      "path": "skill-vault-capture-policy/SKILL.md",
-      "description": "Capture durable operational learnings, new agent skills, and environment/setup changes into the Obsidian vault instead of transient chat memory."
     }
   ],
   "dependencies": {

skills/obsidian-gbrain-safe-index/SKILL.md

@@ -1,137 +0,0 @@
----
-name: obsidian-gbrain-safe-index
-version: 1.0.0
-description: |
-  Connect, maintain, and sync an Obsidian-style Markdown vault with gbrain while preserving a cost-controlled workflow: the vault remains the source of truth, gbrain is the searchable/embedded index, durable skills/workflows are captured into the vault, and paid embedding runs only after explicit approval.
-triggers:
-  - "connect Obsidian to gbrain"
-  - "import my vault to gbrain"
-  - "sync vault and gbrain"
-  - "capture this skill in my vault"
-  - "embed gbrain after vault update"
-  - "is gbrain synced with my vault"
-tools:
-  - terminal
-  - read_file
-  - search_files
-  - write_file
-  - patch
-mutating: true
----
-
-# Obsidian → gbrain Safe Index and Capture
-
-## Contract
-
-This skill guarantees:
-
-- Treats the user's Obsidian-style Markdown vault as the source of truth before gbrain indexing.
-- Keeps gbrain in conservative mode unless the user explicitly approves a more expensive mode.
-- Imports vault changes with `--no-embed` first, then embeds only after explicit approval for the specific paid action.
-- Captures durable new skills, workflows, and environment learnings into the vault instead of leaving them only in chat memory.
-- Verifies every sync with concrete `gbrain stats`, search mode, and, when embeddings run, exact embedded chunk counts.
-
-## Phases
-
-1. **Resolve the vault path.**
-   - Prefer an existing environment variable such as `OBSIDIAN_VAULT_PATH` or `WIKI_PATH`.
-   - If no path is configured, search likely note directories and ask the user before writing.
-   - Verify the directory exists and contains markdown files or an `.obsidian` directory.
-
-2. **Read vault operating rules before writing.**
-   - If the vault has `SCHEMA.md`, `index.md`, `log.md`, `AGENTS.md`, or similar operating files, read them before ingest/query/major edit.
-   - Respect immutable source folders such as `raw/` when the vault declares them.
-   - Use the vault's native link convention, usually Obsidian `[[wikilinks]]`, for durable relationships.
-
-3. **MECE/capture decision.**
-   - If new knowledge belongs on an existing page, update that page.
-   - If it is a distinct recurring workflow or operational policy, create a small meta or concept page following the vault schema.
-   - Update the vault index/catalog for every new page when the vault maintains one.
-   - Append a log entry for meaningful vault updates when the vault maintains a log.
-
-4. **Safe gbrain import path.**
-   - Pre-check source directory; do not import a nonexistent path.
-   - Run `gbrain config set search.mode conservative` before/after risky reinit steps.
-   - Run `gbrain import "$OBSIDIAN_VAULT_PATH" --no-embed`.
-   - Run `gbrain extract links --source fs --dir "$OBSIDIAN_VAULT_PATH"` when wikilinks changed materially.
-
-5. **Paid embedding gate.**
-   - Do not run `gbrain embed --stale` unless the user explicitly asks or a prior instruction clearly approved this exact paid action.
-   - Before embedding, verify provider readiness with `gbrain providers test --model <provider:model>`.
-   - Confirm the configured embedding dimensions match the local schema.
-   - After embedding, verify `gbrain stats` and record exact `Pages`, `Chunks`, `Embedded`, and `Links` counts.
-
-6. **Final verification and vault echo.**
-   - Run `gbrain stats` and `gbrain search modes`.
-   - If vault files changed, re-import with `--no-embed`; if embedding was approved, embed stale chunks afterward.
-   - Report what changed, what was free/local, what used API billing, and what remains pending.
-
-## Output Format
-
-Use a compact status table:
-
-| Item | Status |
-|---|---|
-| Vault path | `/path` |
-| Vault updated | yes/no + files |
-| gbrain mode | conservative/balanced/tokenmax |
-| Import | `--no-embed` completed / skipped / failed |
-| Pages/chunks | exact counts from `gbrain stats` |
-| Embeddings | exact count; note whether this run used API billing |
-| Links | exact count |
-| Background jobs | none / list exact jobs |
-
-Then include:
-
-- **Safe next step:** free/local action.
-- **Paid next step:** embedding/LLM action, if any, with explicit approval requirement.
-
-## Anti-Patterns
-
-- Creating a duplicate skill/page when an existing Obsidian, gbrain, or vault-ingest skill already covers the workflow.
-- Running `gbrain embed --stale`, `gbrain dream`, `gbrain autopilot --install`, `gbrain onboard --auto`, or `tokenmax` without explicit cost approval.
-- Importing a nonexistent or wrong directory and treating a zero-page import as success.
-- Forgetting to update the vault index/catalog and log after creating or materially updating vault pages.
-- Recording API keys, tokens, or raw secrets in the vault or final response.
-
-## Tools Used
-
-- `read_file` — read vault schema/index/log and target notes.
-- `search_files` — find existing vault pages and avoid duplicates.
-- `write_file` / `patch` — create or update vault pages.
-- `terminal` — run `gbrain`, `git`, and environment checks with secret values redacted.
-
-## Safe Commands
-
-```bash
-export PATH="$HOME/.bun/bin:$PATH"
-gbrain config set search.mode conservative
-gbrain import "$OBSIDIAN_VAULT_PATH" --no-embed
-gbrain extract links --source fs --dir "$OBSIDIAN_VAULT_PATH"
-gbrain stats
-gbrain search modes
-```
-
-## Paid / Approval-Gated Commands
-
-```bash
-gbrain providers test --model <provider:model>
-gbrain embed --stale
-gbrain dream
-gbrain autopilot --install
-gbrain onboard --auto --max-usd 5
-gbrain config set search.mode tokenmax
-```
-
-## Verification Checklist
-
-- [ ] Vault path exists and is the intended source.
-- [ ] Vault operating files were read before edits when present.
-- [ ] Existing pages/skills were searched to avoid duplicates.
-- [ ] New/updated vault pages follow the vault schema and link convention.
-- [ ] Vault index/catalog updated for new pages when present.
-- [ ] Vault log appended for meaningful actions when present.
-- [ ] `gbrain import ... --no-embed` completed.
-- [ ] `gbrain stats` recorded pages/chunks/embeddings/links.
-- [ ] `gbrain search modes` confirms conservative mode unless a different mode was explicitly approved.
-- [ ] No paid/background commands ran without approval.

skills/obsidian-gbrain-safe-index/routing-eval.jsonl

@@ -1,11 +0,0 @@
-// Routing eval fixtures for skills/obsidian-gbrain-safe-index.
-// Positive cases: intents embed a trigger phrase in natural surrounding context
-// (never verbatim-identical to a trigger — the fixture linter rejects tautologies).
-{"intent": "help me connect Obsidian to gbrain for my notes", "expected_skill": "obsidian-gbrain-safe-index"}
-{"intent": "import my vault to gbrain but skip embeddings for now", "expected_skill": "obsidian-gbrain-safe-index"}
-{"intent": "please sync vault and gbrain after I edit notes", "expected_skill": "obsidian-gbrain-safe-index"}
-{"intent": "run embed gbrain after vault update tonight", "expected_skill": "obsidian-gbrain-safe-index"}
-{"intent": "hey is gbrain synced with my vault right now", "expected_skill": "obsidian-gbrain-safe-index"}
-// Negative cases: related but owned by other skills. Assert NO route to this skill.
-{"intent": "migrate my notes from Notion to gbrain", "expected_skill": null}
-{"intent": "what is on my calendar tomorrow", "expected_skill": null}

skills/skill-vault-capture-policy/SKILL.md

@@ -1,100 +0,0 @@
----
-name: skill-vault-capture-policy
-version: 1.0.0
-description: |
-  Use when the user wants a durable operational learning, new agent skill, or
-  important environment/setup change to be captured into the Obsidian vault
-  instead of left only in transient chat memory. Covers the capture rule,
-  preferred page patterns, and index/log update obligations.
-triggers:
-  - "save this learning to the vault"
-  - "capture this skill in Obsidian"
-  - "record this workflow in my notes"
-  - "put this setup change in the vault"
-  - "should we add this to the knowledge base"
-tools:
-  - read_file
-  - search_files
-  - write_file
-  - patch
-mutating: true
----
-
-# Skill Vault Capture Policy
-
-## Contract
-
-This skill guarantees:
-
-- Durable operational learnings, newly adopted skills, and important environment/setup changes are captured into the Obsidian vault rather than left only in chat memory.
-- An existing page is updated when the knowledge clearly belongs there; a new page is created only when the topic is distinct and likely to recur.
-- Every new vault page is added to `index.md`.
-- Every meaningful create/update appends a dated entry to `log.md`.
-- Small linked pages are preferred over one giant running note.
-
-## Phases
-
-1. **Classify the learning.**
-   - New gbrain operating rule, cost control, or embedding/provider change.
-   - New agent-fork / harness / coding-tool integration fact.
-   - New Obsidian vault workflow or structure decision.
-   - New recurring agent skill that changes how the agent should operate here.
-
-2. **Avoid duplicates.**
-   - Search the vault for an existing page that already owns the topic.
-   - If found, update it with a new section or dated note rather than creating a near-duplicate.
-
-3. **Create when distinct.**
-   - Place new pages under the vault schema: `_meta/` for operating notes, `concepts/` for workflows, `entities/` for tools/people.
-   - Use YAML frontmatter and at least two `[[wikilinks]]` unless it is a short seed page.
-
-4. **Update navigation.**
-   - Add the page to `index.md` under the correct type heading.
-   - Append a `## [YYYY-MM-DD] create|update | subject` entry to `log.md`.
-
-5. **Report the capture.**
-   - State which files changed and whether `index.md` / `log.md` were updated.
-
-## Output Format
-
-Use a short status block:
-
-| Item | Status |
-|---|---|
-| Learning classified | type |
-| Page created/updated | path |
-| index.md updated | yes/no |
-| log.md updated | yes/no |
-
-## Anti-Patterns
-
-- Leaving durable learnings only in chat memory.
-- Creating a near-duplicate page instead of updating the existing one.
-- Forgetting to update `index.md` and `log.md`.
-- Writing one giant running note instead of small linked pages.
-- Recording secrets, API keys, or raw credentials in the vault.
-
-## Tools Used
-
-- `read_file` — read `SCHEMA.md`, `index.md`, `log.md`, and target pages.
-- `search_files` — find existing pages to avoid duplicates.
-- `write_file` / `patch` — create or update vault pages and navigation.
-
-## Safe Commands
-
-```bash
-# inspect vault navigation before writing
-read SCHEMA.md index.md log.md
-# create or update a page, then refresh catalog/log
-# index.md: add [[page-slug]] under the matching type heading
-# log.md: append ## [YYYY-MM-DD] create|update | subject
-```
-
-## Verification Checklist
-
-- [ ] Vault schema/read files were checked before writing.
-- [ ] Existing pages were searched to avoid duplicates.
-- [ ] New/updated page has frontmatter and wikilinks.
-- [ ] `index.md` updated for new pages.
-- [ ] `log.md` appended for meaningful actions.
-- [ ] No secrets or raw credentials were written.

skills/skill-vault-capture-policy/routing-eval.jsonl

@@ -1,10 +0,0 @@
-// Routing eval fixtures for skills/skill-vault-capture-policy.
-// Positive cases: intents embed a trigger phrase in natural surrounding context
-// (never verbatim-identical to a trigger — the fixture linter rejects tautologies).
-{"intent": "please save this learning to the vault so we keep it", "expected_skill": "skill-vault-capture-policy", "ambiguous_with": ["idea-ingest"]}
-{"intent": "we should capture this skill in Obsidian for reuse", "expected_skill": "skill-vault-capture-policy", "ambiguous_with": ["capture"]}
-{"intent": "can you record this workflow in my notes for next time", "expected_skill": "skill-vault-capture-policy"}
-{"intent": "put this setup change in the vault before we forget", "expected_skill": "skill-vault-capture-policy"}
-// Negative cases: related but owned by other skills or out of scope.
-{"intent": "connect my Obsidian vault to gbrain", "expected_skill": null}
-{"intent": "what is on my calendar tomorrow", "expected_skill": null}

src/core/config.ts

@@ -908,6 +908,10 @@ export const KNOWN_CONFIG_KEYS: readonly string[] = [
   'facts.extraction_model',
   // #2113: output-token cap for the per-turn facts extractor (default 4000).
   'facts.extraction_max_tokens',
+  // Owner opt-in: let the local stdio MCP pipe read this owner's private facts
+  // (find_trajectory / recall). Default off; HTTP transport ignores it. See
+  // src/core/facts/reader-trust.ts.
+  'facts.trust_local_reads',
   // Dream cycle config
   'dream.synthesize.session_corpus_dir',
   'dream.synthesize.meeting_transcripts_dir',

src/core/engine.ts

@@ -591,6 +591,8 @@ export interface TrajectoryOpts {
   sourceIds?: string[];
   /** When true, filters to visibility='world' only. Set by MCP layer from ctx.remote. */
   remote?: boolean;
+  /** Owner opt-in: read private facts despite `remote`. See facts/reader-trust.ts. */
+  trustedFactReads?: boolean;
   /** Metric filter. When set, only facts with this canonical metric label participate. */
   metric?: string;
   /**

src/core/facts/meta-hook.ts

@@ -17,6 +17,7 @@
 import type { OperationContext } from './../operations.ts';
 import type { FactRow } from './../engine.ts';
 import { effectiveConfidence } from './decay.ts';
+import { readableFactVisibilities } from './reader-trust.ts';
 
 const DEFAULT_TTL_MS = 30_000;
 const DEFAULT_TOP_K = 10;
@@ -50,7 +51,13 @@ export async function getBrainHotMemoryMeta(
   const sessionId = (ctx as { source_session?: string }).source_session
     ?? null;
   const allowListHash = hashAllowList(ctx.takesHoldersAllowList);
-  const cacheKey = `${sourceId}::${sessionId ?? '_'}::${allowListHash}`;
+  // Visibility tier: untrusted remote → world-only; trusted local +
+  // owner-trusted reads → all rows. Folded into the cache key (the header's
+  // "cache entries don't bleed across tiers" invariant): trustedFactReads is
+  // re-read from config per call, so a mid-session opt-out must not keep
+  // serving a private-inclusive cached payload for the TTL window.
+  const visibility = readableFactVisibilities(ctx);
+  const cacheKey = `${sourceId}::${sessionId ?? '_'}::${allowListHash}::${visibility ? 'world' : 'all'}`;
 
   const ttl = Math.max(1000, opts.ttlMs ?? DEFAULT_TTL_MS);
   const topK = Math.max(1, Math.min(opts.topK ?? DEFAULT_TOP_K, 25));
@@ -61,10 +68,6 @@ export async function getBrainHotMemoryMeta(
     return cached.payload;
   }
 
-  // Build a fresh payload. Visibility tier: remote → world-only;
-  // local → all rows.
-  const visibility = ctx.remote === false ? undefined : ['world'] as ('world' | 'private')[];
-
   let rows: FactRow[] = [];
   if (sessionId) {
     rows = await ctx.engine.listFactsBySession(sourceId, sessionId, {

src/core/facts/reader-trust.ts

@@ -0,0 +1,48 @@
+/**
+ * Fact-read visibility trust.
+ *
+ * Fact rows are tagged `private` | `world`. Remote/untrusted callers
+ * (`remote === true`) see only `world` rows — the posture that keeps a
+ * published or HTTP-served brain from leaking private claims to strangers.
+ *
+ * But the stdio MCP server is an unauthenticated LOCAL pipe: on a single-owner
+ * machine the caller IS the owner, yet it still defaults `remote: true` for
+ * safety, so the owner's own agent is denied the owner's own private facts
+ * (e.g. `find_trajectory` returns empty over MCP even though the facts exist).
+ *
+ * `trustedFactReads` is a narrow, READ-ONLY trust elevation, deliberately
+ * DECOUPLED from `remote` so every other remote protection — file_upload
+ * confinement, source isolation, fence stripping, takes-holder scoping — stays
+ * fully in force. The stdio MCP server sets it ONLY when the brain owner opts
+ * in via the `facts.trust_local_reads` config (default off). The HTTP/published
+ * transport never sets it, so a served brain stays world-only regardless.
+ */
+export interface FactReaderTrust {
+  /**
+   * Mirrors OperationContext.remote. FAIL-CLOSED: anything not strictly
+   * `false` is treated as remote/untrusted (CLAUDE.md trust invariant).
+   */
+  remote?: boolean;
+  /** Owner opt-in: this remote caller may read private facts. */
+  trustedFactReads?: boolean;
+}
+
+/**
+ * True when the reader is restricted to `visibility = 'world'` rows.
+ * Fail-closed: an unset/undefined `remote` is untrusted — only an explicit
+ * `remote: false` (trusted local CLI) or an explicit owner opt-in
+ * (`trustedFactReads: true`) reads private rows.
+ */
+export function factsWorldOnly(t: FactReaderTrust): boolean {
+  return t.remote !== false && t.trustedFactReads !== true;
+}
+
+/**
+ * Visibility filter for list-style fact reads: `['world']` when the reader is
+ * world-only, `undefined` (no filter — all rows) when it is trusted.
+ */
+export function readableFactVisibilities(
+  t: FactReaderTrust,
+): ('private' | 'world')[] | undefined {
+  return factsWorldOnly(t) ? ['world'] : undefined;
+}

src/core/operations.ts

@@ -18,6 +18,7 @@ import { captureEvalCandidate, isEvalCaptureEnabled, isEvalScrubEnabled } from '
 import type { HybridSearchMeta } from './types.ts';
 import { extractPageLinks, isAutoLinkEnabled, isAutoTimelineEnabled, isGlobalBasenameEnabled, parseTimelineEntries, makeResolver, type UnresolvedFrontmatterRef } from './link-extraction.ts';
 import { isFactsBackstopEligible } from './facts/eligibility.ts';
+import { readableFactVisibilities } from './facts/reader-trust.ts';
 import { stripTakesFence } from './takes-fence.ts';
 import { stripFactsFence } from './facts-fence.ts';
 import { getContentFlag } from './quarantine.ts';
@@ -332,6 +333,15 @@ export interface OperationContext {
    * remote/untrusted (defense in depth in case the type is bypassed via cast).
    */
   remote: boolean;
+  /**
+   * Owner opt-in (`facts.trust_local_reads`): allow this remote caller to read
+   * `private` facts. A NARROW, read-only trust elevation decoupled from
+   * `remote` — every other remote protection (file confinement, source
+   * isolation, fence stripping, takes scoping) stays in force. Set ONLY by the
+   * stdio MCP server when the config is on; the HTTP transport never sets it.
+   * Consulted via `src/core/facts/reader-trust.ts`.
+   */
+  trustedFactReads?: boolean;
   /**
    * Subagent runtime context (v0.16+). Set by the subagent tool dispatcher when
    * dispatching an op as a tool call from an LLM loop. Used to enforce per-op
@@ -3629,6 +3639,7 @@ const find_trajectory: Operation = {
       entitySlug: p.entity_slug,
       ...scope,
       remote: ctx.remote === true,
+      trustedFactReads: ctx.trustedFactReads === true,
       metric,
       kind,
       since,
@@ -3989,13 +4000,9 @@ const recall: Operation = {
     const includeExpired = p.include_expired === true;
     const grep = typeof p.grep === 'string' ? p.grep.toLowerCase() : null;
 
-    // Visibility filter: remote callers see world-only unless their token
-    // grants elevated visibility (future-proofing; v0.31 ships world-only
-    // for remote, all for local CLI).
-    const visibility =
-      ctx.remote === false
-        ? undefined
-        : ['world'] as ('private' | 'world')[];
+    // Visibility filter: world-only for untrusted remote callers; all rows for
+    // trusted local CLI and owner-trusted reads (facts.trust_local_reads).
+    const visibility = readableFactVisibilities(ctx);
 
     let rows: Awaited<ReturnType<typeof ctx.engine.listFactsByEntity>> = [];
 

src/core/pglite-engine.ts

@@ -18,6 +18,7 @@ import type {
 } from './engine.ts';
 import { MAX_SEARCH_LIMIT, clampSearchLimit } from './engine.ts';
 import { withRetry, BULK_RETRY_OPTS, resolveBulkRetryOpts, computeNextDelay, type BatchAuditSite } from './retry.ts';
+import { factsWorldOnly } from './facts/reader-trust.ts';
 import { logBatchRetry as auditLogBatchRetry, logBatchExhausted as auditLogBatchExhausted } from './audit/batch-retry-audit.ts';
 import { runMigrations } from './migrate.ts';
 import { PGLITE_SCHEMA_SQL, getPGLiteSchema } from './pglite-schema.ts';
@@ -4318,7 +4319,10 @@ export class PGLiteEngine implements BrainEngine {
     const useArray = Array.isArray(opts.sourceIds) && opts.sourceIds.length > 0;
     const sourceIds = useArray ? opts.sourceIds! : null;
     const sourceId = opts.sourceId ?? 'default';
-    const remoteFilter = opts.remote === true;
+    // Direct-engine contract: unset `remote` here means a trusted in-process
+    // caller (CLI/tests) — the fail-closed default lives in the op layer, which
+    // always passes explicit booleans. Normalize before the fail-closed helper.
+    const remoteFilter = factsWorldOnly({ remote: opts.remote === true, trustedFactReads: opts.trustedFactReads === true });
 
     // Build SQL dynamically. PGLite uses $N positional params; we
     // assemble the WHERE clauses + params array in tandem to keep them

src/core/postgres-engine.ts

@@ -14,6 +14,7 @@ import type {
   SourceRow,
 } from './engine.ts';
 import { withRetry, BULK_RETRY_OPTS, resolveBulkRetryOpts, computeNextDelay, type BatchAuditSite } from './retry.ts';
+import { factsWorldOnly } from './facts/reader-trust.ts';
 import { logBatchRetry as auditLogBatchRetry, logBatchExhausted as auditLogBatchExhausted } from './audit/batch-retry-audit.ts';
 import type {
   DomainBankSampleOpts, CorpusSampleOpts, DomainBankRow,
@@ -4532,7 +4533,10 @@ export class PostgresEngine implements BrainEngine {
     const useArray = Array.isArray(opts.sourceIds) && opts.sourceIds.length > 0;
     const sourceIds = useArray ? opts.sourceIds! : null;
     const sourceId = opts.sourceId ?? 'default';
-    const remoteFilter = opts.remote === true;
+    // Direct-engine contract: unset `remote` here means a trusted in-process
+    // caller (CLI/tests) — the fail-closed default lives in the op layer, which
+    // always passes explicit booleans. Normalize before the fail-closed helper.
+    const remoteFilter = factsWorldOnly({ remote: opts.remote === true, trustedFactReads: opts.trustedFactReads === true });
 
     // Source-scope predicate: array path (federated) wins over scalar.
     // Engine.ts contract: returns chronological points; regressions +

src/mcp/dispatch.ts

@@ -30,6 +30,13 @@ export interface ToolResult {
 export interface DispatchOpts {
   /** Defaults to true (remote/untrusted). Local CLI callers (`gbrain call`) pass false. */
   remote?: boolean;
+  /**
+   * Owner opt-in (`facts.trust_local_reads`): let this remote caller read
+   * `private` facts. Set ONLY by the stdio MCP server; the HTTP transport
+   * leaves it unset so a served brain stays world-only. See
+   * `src/core/facts/reader-trust.ts`.
+   */
+  trustedFactReads?: boolean;
   /** Override the default stderr logger (e.g. CLI uses console.* directly). */
   logger?: OperationContext['logger'];
   /**
@@ -203,6 +210,7 @@ export function buildOperationContext(
     logger: opts.logger || stderrLogger,
     dryRun: !!params.dry_run,
     remote: opts.remote ?? true,
+    trustedFactReads: opts.trustedFactReads === true,
     takesHoldersAllowList: opts.takesHoldersAllowList,
     // v0.34 D4: sourceId is REQUIRED at the type level. Auto-fill 'default'
     // for single-source brains and any caller who didn't resolve a sourceId.

src/mcp/server.ts

@@ -35,6 +35,16 @@ export async function startMcpServer(engine: BrainEngine) {
   // shape and cast through `any` (the SDK accepts it via the ServerResult union).
   server.setRequestHandler(CallToolRequestSchema, async (request: any): Promise<any> => {
     const { name, arguments: params } = request.params;
+    // Owner opt-in: the stdio pipe is local + unauthenticated, so on a
+    // single-owner machine its caller is the owner. When facts.trust_local_reads
+    // is on, let fact reads (find_trajectory / recall) see this owner's own
+    // private facts. Narrow + read-only — every other remote protection stays
+    // on (remote stays true). HTTP transport never sets this. Best-effort: a
+    // config read blip falls back to the safe world-only default.
+    let trustedFactReads = false;
+    try {
+      trustedFactReads = (await engine.getConfig('facts.trust_local_reads')) === 'true';
+    } catch { /* keep world-only default */ }
     // v0.28: stdio MCP has no per-token auth (local pipe). Default the
     // takes-holder allow-list to ['world'] so agent-facing callers don't
     // see private hunches via takes_list / takes_search / query. Operators
@@ -42,6 +52,7 @@ export async function startMcpServer(engine: BrainEngine) {
     // `gbrain call <op>` (sets remote=false in src/cli.ts).
     return dispatchToolCall(engine, name, params, {
       remote: true,
+      trustedFactReads,
       takesHoldersAllowList: ['world'],
       // v0.31: source defaults to 'default' for stdio (no per-token scope).
       // Operators who want a different source on stdio MCP should set

test/e2e/obsidian-gbrain-safe-index.test.ts

@@ -1,61 +0,0 @@
-/**
- * E2E smoke for skills/obsidian-gbrain-safe-index.
- *
- * Verifies the from-trigger-to-side-effect path that skillify requires:
- * a real user trigger phrase routes to the skill, the resolver/check
- * pipeline treats it as reachable, and the skill file exposes the
- * gbrain commands the workflow actually runs.
- *
- * This stays local-only (no paid embedding, no external API): it asserts
- * the documented safe/import path is present and parseable, not that it
- * mutates a live brain.
- */
-
-import { describe, expect, it } from 'bun:test';
-import { existsSync, readFileSync } from 'fs';
-import { join } from 'path';
-
-const SKILLS = join(import.meta.dir, '..', '..', 'skills');
-const SKILL_MD = join(SKILLS, 'obsidian-gbrain-safe-index', 'SKILL.md');
-const RESOLVER = join(SKILLS, 'RESOLVER.md');
-
-const TRIGGER_PHRASES = [
-  'connect my Obsidian vault to gbrain',
-  'import my vault to gbrain',
-  'sync vault and gbrain',
-  'capture this skill in my vault',
-  'embed gbrain after vault update',
-  'is gbrain synced with my vault',
-];
-
-describe('obsidian-gbrain-safe-index E2E', () => {
-  it('resolver maps real trigger phrasings to the skill', () => {
-    const resolver = readFileSync(RESOLVER, 'utf-8');
-    expect(resolver).toContain('obsidian-gbrain-safe-index/SKILL.md');
-    // Each representative phrase shares a token substring with a resolver row.
-    const rows = resolver
-      .split('\n')
-      .filter((l) => l.includes('obsidian-gbrain-safe-index/SKILL.md'))
-      .join('\n');
-    for (const phrase of TRIGGER_PHRASES) {
-      const hit = phrase
-        .toLowerCase()
-        .split(/\s+/)
-        .some((tok) => tok.length > 3 && rows.toLowerCase().includes(tok));
-      expect(hit, `no resolver token for: ${phrase}`).toBe(true);
-    }
-  });
-
-  it('skill documents the gbrain import-first safe path', () => {
-    const body = readFileSync(SKILL_MD, 'utf-8');
-    expect(body).toContain('gbrain import');
-    expect(body).toContain('--no-embed');
-    expect(body).toContain('gbrain config set search.mode conservative');
-    // Paid gate must be explicit, not a silent default.
-    expect(body).toContain('gbrain embed --stale');
-  });
-
-  it('skill is reachable from the skill tree', () => {
-    expect(existsSync(SKILL_MD)).toBe(true);
-  });
-});

test/e2e/skill-vault-capture-policy.test.ts

@@ -1,52 +0,0 @@
-/**
- * E2E smoke for skills/skill-vault-capture-policy.
- *
- * Verifies the from-trigger-to-side-effect path: a real capture request
- * routes to the skill, and the skill documents the vault navigation
- * obligations (index.md / log.md) that make a capture durable.
- *
- * Local-only: it asserts documented behavior, not live vault writes.
- */
-
-import { describe, expect, it } from 'bun:test';
-import { existsSync, readFileSync } from 'fs';
-import { join } from 'path';
-
-const SKILLS = join(import.meta.dir, '..', '..', 'skills');
-const SKILL_MD = join(SKILLS, 'skill-vault-capture-policy', 'SKILL.md');
-const RESOLVER = join(SKILLS, 'RESOLVER.md');
-
-const TRIGGER_PHRASES = [
-  'save this learning to the vault',
-  'capture this skill in Obsidian',
-  'record this workflow in my notes',
-  'put this setup change in the knowledge base',
-];
-
-describe('skill-vault-capture-policy E2E', () => {
-  it('resolver maps real capture phrasings to the skill', () => {
-    const resolver = readFileSync(RESOLVER, 'utf-8');
-    expect(resolver).toContain('skill-vault-capture-policy/SKILL.md');
-    const rows = resolver
-      .split('\n')
-      .filter((l) => l.includes('skill-vault-capture-policy/SKILL.md'))
-      .join('\n');
-    for (const phrase of TRIGGER_PHRASES) {
-      const hit = phrase
-        .toLowerCase()
-        .split(/\s+/)
-        .some((tok) => tok.length > 3 && rows.toLowerCase().includes(tok));
-      expect(hit, `no resolver token for: ${phrase}`).toBe(true);
-    }
-  });
-
-  it('skill documents index.md and log.md update obligations', () => {
-    const body = readFileSync(SKILL_MD, 'utf-8');
-    expect(body).toContain('index.md');
-    expect(body).toContain('log.md');
-  });
-
-  it('skill is reachable from the skill tree', () => {
-    expect(existsSync(SKILL_MD)).toBe(true);
-  });
-});

test/engine-find-trajectory.test.ts

@@ -165,6 +165,22 @@ describe('findTrajectory — visibility filter (D-CDX-1 / R6)', () => {
     const all = await engine.findTrajectory({ entitySlug: 'traj-vis-default' });
     expect(all.length).toBe(2);
   });
+
+  test('remote=true + trustedFactReads bypasses world-only (owner-trusted reads)', async () => {
+    await insertTyped({ entity_slug: 'traj-vis-trusted', metric: 'mrr', value: 50000, visibility: 'private', valid_from: new Date('2026-01-15') });
+    await insertTyped({ entity_slug: 'traj-vis-trusted', metric: 'mrr', value: 99999, visibility: 'world',   valid_from: new Date('2026-04-12') });
+
+    // Untrusted remote: world only.
+    const untrusted = await engine.findTrajectory({ entitySlug: 'traj-vis-trusted', remote: true });
+    expect(untrusted.length).toBe(1);
+    expect(untrusted[0].value).toBe(99999);
+
+    // Owner-trusted remote: sees the private point too. remote stays true — only
+    // fact-read visibility is elevated.
+    const trusted = await engine.findTrajectory({ entitySlug: 'traj-vis-trusted', remote: true, trustedFactReads: true });
+    expect(trusted.length).toBe(2);
+    expect(trusted.map(p => p.value).sort((a, b) => (a! - b!))).toEqual([50000, 99999]);
+  });
 });
 
 describe('findTrajectory — metric + since + until filters', () => {

test/facts-reader-trust.test.ts

@@ -0,0 +1,43 @@
+import { describe, test, expect } from 'bun:test';
+import {
+  factsWorldOnly,
+  readableFactVisibilities,
+} from '../src/core/facts/reader-trust.ts';
+
+describe('factsWorldOnly', () => {
+  test('FAIL-CLOSED: unset remote is untrusted (world-only)', () => {
+    expect(factsWorldOnly({})).toBe(true);
+    expect(factsWorldOnly({ remote: undefined })).toBe(true);
+    expect(factsWorldOnly({ trustedFactReads: false })).toBe(true);
+  });
+
+  test('explicit remote=false (trusted local CLI) sees all', () => {
+    expect(factsWorldOnly({ remote: false })).toBe(false);
+    expect(factsWorldOnly({ remote: false, trustedFactReads: false })).toBe(false);
+  });
+
+  test('untrusted remote callers are world-only', () => {
+    expect(factsWorldOnly({ remote: true })).toBe(true);
+    expect(factsWorldOnly({ remote: true, trustedFactReads: false })).toBe(true);
+  });
+
+  test('owner-trusted remote reads bypass the world-only filter', () => {
+    expect(factsWorldOnly({ remote: true, trustedFactReads: true })).toBe(false);
+  });
+
+  test('trustedFactReads is a no-op for an already-trusted local caller', () => {
+    expect(factsWorldOnly({ remote: false, trustedFactReads: true })).toBe(false);
+  });
+});
+
+describe('readableFactVisibilities', () => {
+  test("world-only readers get the ['world'] filter (incl. unset remote)", () => {
+    expect(readableFactVisibilities({ remote: true })).toEqual(['world']);
+    expect(readableFactVisibilities({})).toEqual(['world']);
+  });
+
+  test('trusted readers get undefined (no filter — all rows)', () => {
+    expect(readableFactVisibilities({ remote: false })).toBeUndefined();
+    expect(readableFactVisibilities({ remote: true, trustedFactReads: true })).toBeUndefined();
+  });
+});

test/obsidian-gbrain-safe-index.test.ts

@@ -1,51 +0,0 @@
-import { describe, expect, it } from 'bun:test';
-import { readFileSync, existsSync } from 'fs';
-import { join } from 'path';
-
-const SKILL_DIR = join(import.meta.dir, '..', 'skills', 'obsidian-gbrain-safe-index');
-const SKILL_MD = join(SKILL_DIR, 'SKILL.md');
-const RESOLVER = join(import.meta.dir, '..', 'skills', 'RESOLVER.md');
-
-function parseFrontmatter(raw: string): Record<string, unknown> {
-  const m = raw.match(/^---\n([\s\S]*?)\n---/);
-  if (!m) throw new Error('no frontmatter');
-  const out: Record<string, unknown> = {};
-  for (const line of m[1].split('\n')) {
-    const mm = line.match(/^([a-zA-Z_]+):\s*(.*)$/);
-    if (mm) out[mm[1]] = mm[2].trim();
-  }
-  return out;
-}
-
-describe('obsidian-gbrain-safe-index skill', () => {
-  it('has a SKILL.md with required frontmatter', () => {
-    expect(existsSync(SKILL_MD)).toBe(true);
-    const fm = parseFrontmatter(readFileSync(SKILL_MD, 'utf-8'));
-    expect(fm['name']).toBe('obsidian-gbrain-safe-index');
-    expect(fm['description']).toBeTruthy();
-  });
-
-  it('has the required conformance sections', () => {
-    const body = readFileSync(SKILL_MD, 'utf-8');
-    for (const section of ['## Contract', '## Phases', '## Output Format', '## Anti-Patterns']) {
-      expect(body.includes(section), `missing ${section}`).toBe(true);
-    }
-  });
-
-  it('is registered in RESOLVER.md', () => {
-    expect(existsSync(RESOLVER)).toBe(true);
-    const resolver = readFileSync(RESOLVER, 'utf-8');
-    expect(resolver.includes('obsidian-gbrain-safe-index/SKILL.md')).toBe(true);
-  });
-
-  it('has routing-eval fixtures that exercise real trigger phrasings', () => {
-    const evalPath = join(SKILL_DIR, 'routing-eval.jsonl');
-    expect(existsSync(evalPath)).toBe(true);
-    const lines = readFileSync(evalPath, 'utf-8')
-      .split('\n')
-      .filter((l) => l.trim() && !l.trim().startsWith('//'))
-      .map((l) => JSON.parse(l));
-    const positives = lines.filter((l) => l.expected_skill === 'obsidian-gbrain-safe-index');
-    expect(positives.length).toBeGreaterThanOrEqual(5);
-  });
-});

test/skill-vault-capture-policy.test.ts

@@ -1,64 +0,0 @@
-import { describe, expect, it } from 'bun:test';
-import { readFileSync, existsSync } from 'fs';
-import { join } from 'path';
-import { DEFAULT_PRIVATE_PATTERNS } from '../src/core/skillpack/harvest-lint.ts';
-
-const SKILL_DIR = join(import.meta.dir, '..', 'skills', 'skill-vault-capture-policy');
-const SKILL_MD = join(SKILL_DIR, 'SKILL.md');
-const RESOLVER = join(import.meta.dir, '..', 'skills', 'RESOLVER.md');
-
-function parseFrontmatter(raw: string): Record<string, unknown> {
-  const m = raw.match(/^---\n([\s\S]*?)\n---/);
-  if (!m) throw new Error('no frontmatter');
-  const out: Record<string, unknown> = {};
-  for (const line of m[1].split('\n')) {
-    const mm = line.match(/^([a-zA-Z_]+):\s*(.*)$/);
-    if (mm) out[mm[1]] = mm[2].trim();
-  }
-  return out;
-}
-
-describe('skill-vault-capture-policy skill', () => {
-  it('has a SKILL.md with required frontmatter', () => {
-    expect(existsSync(SKILL_MD)).toBe(true);
-    const fm = parseFrontmatter(readFileSync(SKILL_MD, 'utf-8'));
-    expect(fm['name']).toBe('skill-vault-capture-policy');
-    expect(fm['description']).toBeTruthy();
-  });
-
-  it('has the required conformance sections', () => {
-    const body = readFileSync(SKILL_MD, 'utf-8');
-    for (const section of ['## Contract', '## Phases', '## Output Format', '## Anti-Patterns']) {
-      expect(body.includes(section), `missing ${section}`).toBe(true);
-    }
-  });
-
-  it('is registered in RESOLVER.md', () => {
-    expect(existsSync(RESOLVER)).toBe(true);
-    expect(readFileSync(RESOLVER, 'utf-8').includes('skill-vault-capture-policy/SKILL.md')).toBe(true);
-  });
-
-  it('contains no private user or agent-fork names (privacy rule)', () => {
-    for (const file of [SKILL_MD, join(SKILL_DIR, 'routing-eval.jsonl')]) {
-      const body = readFileSync(file, 'utf-8');
-      // DEFAULT_PRIVATE_PATTERNS[0] is the banned fork-name pattern; sourced
-      // from harvest-lint so this file never contains the literal itself
-      // (scripts/check-privacy.sh would reject it).
-      const forkName = new RegExp(DEFAULT_PRIVATE_PATTERNS[0], 'i');
-      for (const name of [/\bAdam\b/, /\bHermes\b/, /\bHerdr\b/, /\bArk\b/, forkName]) {
-        expect(name.test(body), `private name ${name} in ${file}`).toBe(false);
-      }
-    }
-  });
-
-  it('has routing-eval fixtures', () => {
-    const evalPath = join(SKILL_DIR, 'routing-eval.jsonl');
-    expect(existsSync(evalPath)).toBe(true);
-    const positives = readFileSync(evalPath, 'utf-8')
-      .split('\n')
-      .filter((l) => l.trim() && !l.trim().startsWith('//'))
-      .map((l) => JSON.parse(l))
-      .filter((l) => l.expected_skill === 'skill-vault-capture-policy');
-    expect(positives.length).toBeGreaterThanOrEqual(4);
-  });
-});