fix(thin-client): keep ambient scope out of get_skill's non-scope source_id param

get_skill's source_id is a mode switch (host catalog vs brain-resident-pack
lookup), not a read-scope filter. Ambient GBRAIN_SOURCE / .gbrain-source
injection would silently reroute 'gbrain skill <name>' on thin clients to
getResidentSkillDetail. Exclude it via NON_SCOPE_SOURCE_ID_OPS; explicit
--source-id still passes through, explicit --source errors with a hint.

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

docs/architecture/KEY_FILES.md

@@ -457,7 +457,6 @@ unresolvable+true|false, pre-v80 NULL/NULL rows survive).
 - `src/core/think/prompt.ts` extension — anti-bias rewrite. `withCalibration` option on `buildThinkSystemPrompt` adds anti-bias rules. `buildCalibrationBlock()` emits the `<calibration>` XML. `buildThinkUserMessage` has TWO shapes: default (question first), and with-calibration (retrieval → calibration → question) when opt-in. Wired into `runThink` via `opts.withCalibration` + `opts.calibrationHolder`.
 - `src/commands/calibration.ts` — CLI: `gbrain calibration` (read + print), `--regenerate`, `--undo-wave <ver>`, `ab-report`. MCP op `get_calibration_profile` (scope: read) backs the same data path. Source-scoped via `sourceScopeOpts(ctx)`.
 - `src/commands/serve-http.ts` extension — three admin routes: `/admin/api/calibration/profile`, `/admin/api/calibration/charts/:type` (image/svg+xml; type in {brier-trend, domain-bars, pattern-statements, abandoned-threads}), `/admin/api/calibration/pattern/:id` (drill-down).
-- `src/core/owner-holder.ts` — single source of truth for "the brain owner" holder string. `DEFAULT_OWNER_HOLDER = 'self'` (matches the consolidate facts→takes writer + `docs/takes-vs-facts.md`); `resolveOwnerHolder({override, configValue})` returns override > `emotional_weight.user_holder` config > `'self'`. Consumed by the calibration_profile cycle phase, `gbrain calibration` CLI, the `get_calibration_profile` op, `think`'s calibration block, `emotional-weight`'s `DEFAULT_USER_HOLDER`, and doctor's `calibration_freshness`. Pure; unit-tested in `test/owner-holder.test.ts`. Does NOT unify owner-identity fragmentation (`self`/`brain`/`people-<owner>`) — tracked separately.
 - `src/commands/takes.ts` extension — `gbrain takes revisit <slug>` opens $EDITOR on the source page with a `<!-- gbrain:revisit -->` cursor marker.
 - `src/commands/doctor.ts` extension — 4 checks: `abandoned_threads`, `calibration_freshness`, `grade_confidence_drift` (mitigation surface; math ships later), `voice_gate_health`.
 - `admin/src/pages/Calibration.tsx` — Calibration tab. Single-column layout. `<TrustedSVG>` wrapper handles `dangerouslySetInnerHTML` for the server-rendered SVG.

docs/takes-vs-facts.md

@@ -91,18 +91,3 @@ First full takes extraction run on a ~100K-page brain:
 4. **Self-reported ≠ verified.** "Reports 7 figures" → holder=person, weight=0.75, NOT world/1.0
 5. **No false precision.** Use 0.05 increments (0.35, 0.55, 0.75), not 0.74 or 0.82
 6. **"So what" test.** Skip Twitter handles, follower counts, obvious metadata
-
-## Owner-holder canonicalization
-
-"The brain owner" is, by convention, the holder string **`self`** — the value the
-dream `consolidate` phase stamps when it promotes the owner's hot facts into cold
-takes. Calibration, `think`, and the `doctor` calibration check resolve the owner
-holder through `resolveOwnerHolder` (`src/core/owner-holder.ts`): explicit override
-> `emotional_weight.user_holder` config > `self`.
-
-Known limitation (tracked in garrytan/gbrain#2465): the owner can also
-appear under `brain` (a take the owner asserts, via `propose_takes`) and
-`people/<owner>` (extraction that names the owner). The resolver selects the
-*default* canonical owner string for reads; it does not merge those other
-strings. Per-take attribution for other people (e.g. `people/george`) is
-unaffected and correct.

src/cli.ts

@@ -24,6 +24,7 @@ import type { GBrainConfig } from './core/config.ts';
 import type { AIGatewayConfig } from './core/ai/types.ts';
 import type { BrainEngine } from './core/engine.ts';
 import { operations, OperationError } from './core/operations.ts';
+import { resolveSourceIdEngineFree } from './core/source-resolver.ts';
 import { formatVolunteeredPage } from './core/context/volunteer.ts';
 import type { Operation, OperationContext } from './core/operations.ts';
 import { shouldForceExitAfterMain, finishCliTeardown, flushThenExit, currentExitCode, setCliExitVerdict } from './core/cli-force-exit.ts';
@@ -382,6 +383,15 @@ async function main() {
     if (op.localOnly) {
       refuseThinClient(command, cfgPre!.remote_mcp!.mcp_url);
     }
+    // #2098: the local path resolves --source / GBRAIN_SOURCE / .gbrain-source
+    // inside makeContext (ctx.sourceId), which this route never reaches — so
+    // scope must be mapped onto the op's source_id wire param before the call.
+    try {
+      applyThinClientSourceScope(op, params);
+    } catch (e: unknown) {
+      console.error(e instanceof Error ? e.message : String(e));
+      process.exit(1);
+    }
     await runThinClientRouted(op, params, cfgPre!, cliOpts);
     return;
   }
@@ -802,6 +812,60 @@ export function parseOpArgs(op: Operation, args: string[]): Record<string, unkno
   return params;
 }
 
+/**
+ * #2098: thin-client source scoping. Locally, --source / GBRAIN_SOURCE /
+ * .gbrain-source resolve to ctx.sourceId in makeContext; the thin-client
+ * route short-circuits before that, so `gbrain query --source X` against a
+ * remote brain silently searched unscoped. This runs the engine-free tiers
+ * (flag → env → dotfile; the DB-backed tiers can't run without an engine —
+ * the server's grant scoping covers the rest) and maps the result onto the
+ * op's `source_id` wire param.
+ *
+ * Ops that declare their OWN `source` param (facts add, etc.) are left
+ * untouched — their --source is an op param, not scope. An explicit --source
+ * on an op with no source_id wire param throws (loud beats silent drop);
+ * ambient env/dotfile scope with nowhere to send it is ignored, matching the
+ * pre-fix behavior for non-scopeable ops. Exported for tests.
+ */
+// Ops whose `source_id` wire param is NOT read-scope semantics: get_skill's
+// source_id flips the lookup from host catalog to brain-resident-pack
+// (getResidentSkillDetail). Ambient env/dotfile scope must never leak into
+// these; an explicit --source-id still passes through untouched above.
+const NON_SCOPE_SOURCE_ID_OPS = new Set(['get_skill']);
+
+export function applyThinClientSourceScope(
+  op: Operation,
+  params: Record<string, unknown>,
+  cwd?: string,
+): void {
+  if ('source' in op.params) return; // the op owns --source; not a scope flag
+  const explicit = typeof params.source === 'string' && params.source.length > 0
+    ? (params.source as string)
+    : null;
+  delete params.source; // never a wire param on these ops — don't leak it
+  // Explicit per-call scope already on the wire wins over ambient tiers.
+  if (params.source_id !== undefined || params.all_sources === true) {
+    if (explicit) {
+      throw new Error('Pass either --source or --source-id/--all-sources, not both.');
+    }
+    return;
+  }
+  const resolved = resolveSourceIdEngineFree(explicit, cwd);
+  if (!resolved) return;
+  if (!('source_id' in op.params) || NON_SCOPE_SOURCE_ID_OPS.has(op.name)) {
+    if (explicit) {
+      const hint = NON_SCOPE_SOURCE_ID_OPS.has(op.name)
+        ? `(its source_id parameter is not a scope filter; pass --source-id explicitly if you mean it)`
+        : `(the remote op has no source_id parameter; the server scopes it to your grant)`;
+      throw new Error(
+        `gbrain ${op.cliHints?.name || op.name} does not accept --source on a thin-client install ${hint}.`,
+      );
+    }
+    return; // ambient env/dotfile scope with nowhere to send it
+  }
+  params.source_id = resolved;
+}
+
 async function makeContext(engine: BrainEngine, params: Record<string, unknown>): Promise<OperationContext> {
   // v0.31.8 (D11): resolve sourceId via the canonical 6-tier chain. Honors
   // --source / GBRAIN_SOURCE / .gbrain-source / path-match / brain default /

src/commands/calibration.ts

@@ -23,7 +23,6 @@ import { runPhaseCalibrationProfile } from '../core/cycle/calibration-profile.ts
 import { sourceScopeOpts, type OperationContext } from '../core/operations.ts';
 import type { GBrainConfig } from '../core/config.ts';
 import { GBrainError } from '../core/types.ts';
-import { resolveOwnerHolder } from '../core/owner-holder.ts';
 
 export interface CalibrationProfileRow {
   /** BIGSERIAL → string (postgres.js int8 wire shape; never Number() — int8
@@ -168,10 +167,7 @@ export async function runCalibration(
   config: GBrainConfig,
 ): Promise<void> {
   const { opts } = parseArgs(args);
-  const holder = resolveOwnerHolder({
-    override: opts.holder,
-    configValue: await engine.getConfig('emotional_weight.user_holder'),
-  });
+  const holder = opts.holder ?? 'garry';
   // Resolve --source / GBRAIN_SOURCE / .gbrain-source so the (now reachable, #2035)
   // calibration command targets the right source in a multi-source brain instead
   // of always reading `default`. No signal → 'default' (prior behavior).
@@ -257,15 +253,12 @@ export async function getCalibrationProfileOp(
   ctx: OperationContext,
   params: { holder?: string },
 ): Promise<CalibrationProfileRow | null> {
-  const holder = resolveOwnerHolder({
-    override: params.holder,
-    configValue: await ctx.engine.getConfig('emotional_weight.user_holder'),
-  });
+  const holder = params.holder ?? 'garry';
   if (typeof holder !== 'string' || holder.length === 0) {
     throw new GBrainError(
       'INVALID_HOLDER',
       'get_calibration_profile.holder must be a non-empty string',
-      'pass holder="<slug>" or omit to default to the owner holder (config emotional_weight.user_holder, else "self")',
+      'pass holder="<slug>" or omit to default to "garry"',
     );
   }
   const scope = sourceScopeOpts(ctx);

src/commands/doctor.ts

@@ -28,7 +28,6 @@ import type { DbUrlSource } from '../core/config.ts';
 import { gbrainPath, loadConfig } from '../core/config.ts';
 import { reflexEnabled } from '../core/context/reflex.ts';
 import { resolveSocketPath } from '../core/context/resolve-ipc.ts';
-import { resolveOwnerHolder } from '../core/owner-holder.ts';
 import { homedir } from 'os';
 import { dirname, isAbsolute, join, resolve as resolvePath } from 'path';
 import { fileURLToPath } from 'url';
@@ -1288,19 +1287,14 @@ export async function checkAbandonedThreads(engine: BrainEngine): Promise<Check>
 
 /**
  * calibration_freshness: warns when the active calibration profile is
- * older than 7 days (configurable). Default holder resolves via resolveOwnerHolder
- * (config emotional_weight.user_holder, else 'self'). Multi-source
+ * older than 7 days (configurable). Default holder 'garry'. Multi-source
  * brains see one row per source; this check uses the most recent across
  * all sources.
  */
 export async function checkCalibrationFreshness(engine: BrainEngine): Promise<Check> {
   try {
-    const ownerHolder = resolveOwnerHolder({
-      configValue: await engine.getConfig('emotional_weight.user_holder'),
-    });
     const rows = await engine.executeRaw<{ generated_at: Date | null }>(
-      `SELECT MAX(generated_at) AS generated_at FROM calibration_profiles WHERE holder = $1`,
-      [ownerHolder],
+      `SELECT MAX(generated_at) AS generated_at FROM calibration_profiles WHERE holder = 'garry'`,
     );
     const generated = rows[0]?.generated_at;
     if (!generated) {

src/commands/serve-http.ts

@@ -45,7 +45,6 @@ import {
   type IngestionContentType,
   type IngestionEvent,
 } from '../core/ingestion/types.ts';
-import { resolveOwnerHolder } from '../core/owner-holder.ts';
 
 /**
  * /health endpoint timeout. 3s rather than 5s: Fly.io's default
@@ -1191,7 +1190,7 @@ export async function runServeHttp(engine: BrainEngine, options: ServeHttpOption
   app.get('/admin/api/calibration/pattern/:id', requireAdmin, async (req: Request, res: Response) => {
     try {
       const { getLatestProfile } = await import('./calibration.ts');
-      const holder = resolveOwnerHolder({ override: (req.query.holder as string) || undefined, configValue: await engine.getConfig('emotional_weight.user_holder') });
+      const holder = (req.query.holder as string) || 'garry';
       const profile = await getLatestProfile(engine, { holder });
       if (!profile) {
         res.status(404).json({ error: 'no_profile' });
@@ -1241,7 +1240,7 @@ export async function runServeHttp(engine: BrainEngine, options: ServeHttpOption
   app.get('/admin/api/calibration/profile', requireAdmin, async (req: Request, res: Response) => {
     try {
       const { getLatestProfile } = await import('./calibration.ts');
-      const holder = resolveOwnerHolder({ override: (req.query.holder as string) || undefined, configValue: await engine.getConfig('emotional_weight.user_holder') });
+      const holder = (req.query.holder as string) || 'garry';
       const profile = await getLatestProfile(engine, { holder });
       res.json(profile);
     } catch (err) {
@@ -1258,7 +1257,7 @@ export async function runServeHttp(engine: BrainEngine, options: ServeHttpOption
         renderAbandonedThreadsCard,
         renderPatternStatementsCard,
       } = await import('../core/calibration/svg-renderer.ts');
-      const holder = resolveOwnerHolder({ override: (req.query.holder as string) || undefined, configValue: await engine.getConfig('emotional_weight.user_holder') });
+      const holder = (req.query.holder as string) || 'garry';
       const type = req.params.type;
       const profile = await getLatestProfile(engine, { holder });
 

src/commands/takes.ts

@@ -29,7 +29,6 @@ import {
 } from '../core/takes-fence.ts';
 import { withPageLock } from '../core/page-lock.ts';
 import { resolveSourceId } from '../core/source-resolver.ts';
-import { resolveOwnerHolder } from '../core/owner-holder.ts';
 
 // --- Helpers ---
 
@@ -365,7 +364,7 @@ async function cmdResolve(engine: BrainEngine, args: string[], sourceId?: string
   // --evidence is the v0.30.0 alias for --source on the resolve subcommand
   // (semantic clarity: "what evidence resolved this bet?").
   const source = flagValue(args, '--evidence') ?? flagValue(args, '--source');
-  const resolvedBy = flagValue(args, '--by') ?? resolveOwnerHolder({ configValue: await engine.getConfig('emotional_weight.user_holder') });
+  const resolvedBy = flagValue(args, '--by') ?? 'garry';
   const dirArg = flagValue(args, '--dir');
 
   const pageId = await getPageId(engine, slug, sourceId);

src/core/brainstorm/orchestrator.ts

@@ -68,7 +68,6 @@ import {
   type BrainstormCheckpoint,
   type CheckpointCross,
 } from './checkpoint.ts';
-import { resolveOwnerHolder } from '../owner-holder.ts';
 
 export { BudgetExhausted };
 
@@ -140,7 +139,7 @@ export interface BrainstormOptions {
   modelOverride?: string;
   /** Skip the cost-preview TTY grace window. Required for non-interactive callers. */
   skipCostPreview?: boolean;
-  /** When set, force the user holder for calibration profile lookup. Falls back to config (`emotional_weight.user_holder`) then `'self'`. */
+  /** When set, force the user holder for calibration profile lookup. Falls back to config (`emotional_weight.user_holder`) then `'garry'`. */
   holderOverride?: string;
   /** Source scope. */
   sourceId?: string;
@@ -624,7 +623,7 @@ async function _runBrainstormInner(
   }
 
   // ---- Phase 3: calibration context (cold-start fallback) ----
-  const holder = resolveOwnerHolder({ override: opts.holderOverride, configValue: config.emotional_weight?.user_holder });
+  const holder = opts.holderOverride ?? config.emotional_weight?.user_holder ?? 'garry';
   const calibContext = await loadCalibrationContext(engine, {
     holder,
     sourceId: opts.sourceId,

src/core/calibration/think-ab.ts

@@ -25,7 +25,7 @@ import type { BrainEngine } from '../engine.ts';
 
 export interface ABRunInput {
   question: string;
-  /** Holder context for calibration. Resolves via resolveOwnerHolder (config emotional_weight.user_holder, else 'self'). */
+  /** Holder context for calibration. Default 'garry'. */
   holder?: string;
   /** Engine for DB write. */
   engine: BrainEngine;

src/core/cycle/calibration-profile.ts

@@ -26,7 +26,6 @@
  */
 
 import { BaseCyclePhase, type ScopedReadOpts, type BasePhaseOpts } from './base-phase.ts';
-import { resolveOwnerHolder } from '../owner-holder.ts';
 import { chat as gatewayChat } from '../ai/gateway.ts';
 import { TIER_DEFAULTS } from '../model-config.ts';
 import { gateVoice, type VoiceGateGenerator, type VoiceGateJudge } from '../calibration/voice-gate.ts';
@@ -97,7 +96,7 @@ export type PatternStatementsGenerator = (input: {
 export type BiasTagsGenerator = (patterns: string[]) => Promise<string[]>;
 
 export interface CalibrationProfileOpts extends BasePhaseOpts {
-  /** Holder to generate the profile for. Default resolves via resolveOwnerHolder (config emotional_weight.user_holder, else 'self'). */
+  /** Holder to generate the profile for. Default 'garry'. */
   holder?: string;
   /** Inject the patterns generator (tests). */
   patternsGenerator?: PatternStatementsGenerator;
@@ -228,10 +227,7 @@ class CalibrationProfilePhase extends BaseCyclePhase {
     _ctx: OperationContext,
     opts: CalibrationProfileOpts,
   ): Promise<{ summary: string; details: Record<string, unknown>; status?: PhaseStatus }> {
-    const holder = resolveOwnerHolder({
-      override: opts.holder,
-      configValue: await engine.getConfig('emotional_weight.user_holder'),
-    });
+    const holder = opts.holder ?? 'garry';
     const promptVersion = opts.promptVersion ?? CALIBRATION_PROFILE_PROMPT_VERSION;
     const modelId = opts.model ?? TIER_DEFAULTS.reasoning;
     const gradeCompletion = opts.gradeCompletion ?? 1.0;

src/core/cycle/emotional-weight.ts

@@ -14,8 +14,6 @@
  * See `loadHighEmotionTags` for the resolution path.
  */
 
-import { DEFAULT_OWNER_HOLDER } from '../owner-holder.ts';
-
 /**
  * Default high-emotion tag seed list. Pages with any tag in this set get the
  * tag-emotion boost in the formula below. Override via config key
@@ -45,12 +43,11 @@ export const HIGH_EMOTION_TAGS: ReadonlySet<string> = new Set([
 ]);
 
 /**
- * Holder name treated as "the user" for the user-as-holder ratio. Configurable
- * via the `emotional_weight.user_holder` config key; defaults to the canonical
- * owner holder ('self', DEFAULT_OWNER_HOLDER) so it matches the consolidate
- * facts→takes writer instead of a hardcoded name.
+ * Holder name treated as "the user" for the Garry-as-holder ratio. Configurable
+ * via the `emotional_weight.user_holder` config key (defaults to 'garry' to
+ * match the v0.28 schema's takes table convention).
  */
-export const DEFAULT_USER_HOLDER = DEFAULT_OWNER_HOLDER;
+export const DEFAULT_USER_HOLDER = 'garry';
 
 export interface EmotionalWeightTake {
   holder: string;

src/core/operations.ts

@@ -3289,7 +3289,7 @@ const get_calibration_profile: Operation = {
     holder: {
       type: 'string',
       description:
-        "Holder slug, e.g. 'self' or 'people/charlie-example'. Defaults to config emotional_weight.user_holder, else 'self', when omitted.",
+        "Holder slug, e.g. 'garry' or 'people/charlie-example'. Defaults to 'garry' when omitted.",
     },
   },
   handler: async (ctx, p) => {

src/core/owner-holder.ts

@@ -1,24 +0,0 @@
-/**
- * Canonical holder string for "the brain owner," resolved in ONE place so the
- * calibration / think / doctor / emotional-weight defaults stop disagreeing.
- *
- * The default matches the consolidate facts→takes writer
- * (src/core/cycle/phases/consolidate.ts: holder:'self') and docs/takes-vs-facts.md.
- * Do NOT introduce a fourth literal — three already exist historically
- * ('garry', 'system', 'self'); this is the source of truth.
- *
- * NORMALIZATION NOTE: the brain owner may also appear under other holder
- * strings — 'brain' (propose_takes when the author asserts a claim) and
- * people/<owner> (extraction that names the owner). This resolver only selects
- * the *default* canonical owner string for reads; it does NOT merge those other
- * strings. Unifying them is owner-identity entity-resolution, tracked separately
- * (see garrytan/gbrain#2465). Until then, historical owner takes
- * under 'brain'/people-<owner> are not folded into the default profile.
- */
-export const DEFAULT_OWNER_HOLDER = 'self';
-
-export function resolveOwnerHolder(
-  opts: { override?: string | null; configValue?: string | null },
-): string {
-  return opts.override ?? opts.configValue ?? DEFAULT_OWNER_HOLDER;
-}

src/core/source-resolver.ts

@@ -160,6 +160,33 @@ export async function resolveSourceId(
   return 'default';
 }
 
+/**
+ * Engine-free tiers (1-3) of the resolution chain: explicit flag →
+ * GBRAIN_SOURCE env → .gbrain-source dotfile walk. Used by the thin-client
+ * CLI path (#2098), which has no local engine to run tiers 4-6 or
+ * assertSourceExists against — the remote server enforces existence + grant.
+ * Returns null when no engine-free tier fires.
+ */
+export function resolveSourceIdEngineFree(
+  explicit: string | null | undefined,
+  cwd: string = process.cwd(),
+): string | null {
+  if (explicit) {
+    if (!SOURCE_ID_RE.test(explicit)) {
+      throw new Error(`Invalid --source value "${explicit}". Must match [a-z0-9-]{1,32}.`);
+    }
+    return explicit;
+  }
+  const env = process.env.GBRAIN_SOURCE;
+  if (env && env.length > 0) {
+    if (!SOURCE_ID_RE.test(env)) {
+      throw new Error(`Invalid GBRAIN_SOURCE value "${env}". Must match [a-z0-9-]{1,32}.`);
+    }
+    return env;
+  }
+  return readDotfileWalk(cwd);
+}
+
 /**
  * Returns the id of the SINGLE registered non-default source with a
  * local_path, when exactly one such row exists. Returns null when:

src/core/think/index.ts

@@ -23,7 +23,6 @@ import { runGather, renderPagesBlock, takesHitToTakeForPrompt } from './gather.t
 import { renderTakesBlock } from './sanitize.ts';
 import { buildThinkSystemPrompt, buildThinkUserMessage } from './prompt.ts';
 import { resolveCitations, type ParsedCitation } from './cite-render.ts';
-import { resolveOwnerHolder } from '../owner-holder.ts';
 import { resolveModel } from '../model-config.ts';
 import { chat as gatewayChat, probeChatModel, type ChatResult } from '../ai/gateway.ts';
 import { AIConfigError } from '../ai/errors.ts';
@@ -77,8 +76,8 @@ export interface RunThinkOpts {
    */
   withCalibration?: boolean;
   /**
-   * Holder to retrieve the calibration profile for. Resolves via resolveOwnerHolder
-   * (config emotional_weight.user_holder, else 'self'). Only consulted when withCalibration=true.
+   * Holder to retrieve the calibration profile for. Default 'garry'. Only
+   * consulted when withCalibration=true.
    */
   calibrationHolder?: string;
   /**
@@ -309,10 +308,7 @@ export async function runThink(
     try {
       const { getLatestProfile } = await import('../../commands/calibration.ts');
       const profile = await getLatestProfile(engine, {
-        holder: resolveOwnerHolder({
-          override: opts.calibrationHolder,
-          configValue: await engine.getConfig('emotional_weight.user_holder'),
-        }),
+        holder: opts.calibrationHolder ?? 'garry',
       });
       if (profile) {
         calibrationBlockOpts = {

test/calibration-cli.test.ts

@@ -27,12 +27,6 @@ function buildMockEngine(opts: { rows: CalibrationProfileRow[] }): {
   const capturedParams: unknown[][] = [];
   const engine = {
     kind: 'pglite',
-    // #2464: getCalibrationProfileOp resolves the owner holder via
-    // resolveOwnerHolder(config emotional_weight.user_holder, else 'self'), so the
-    // mock must implement getConfig. null = key unset → resolver falls back to 'self'.
-    async getConfig(): Promise<string | null> {
-      return null;
-    },
     async executeRaw<T>(sql: string, params?: unknown[]): Promise<T[]> {
       capturedSql.push(sql);
       capturedParams.push(params ?? []);
@@ -217,17 +211,17 @@ describe('formatProfileText', () => {
 // ─── getCalibrationProfileOp ────────────────────────────────────────
 
 describe('getCalibrationProfileOp (MCP)', () => {
-  test('defaults holder to "self" when omitted (config emotional_weight.user_holder unset)', async () => {
-    const { engine } = buildMockEngine({ rows: [buildProfile({ holder: 'self' })] });
+  test('defaults holder to "garry" when omitted', async () => {
+    const { engine } = buildMockEngine({ rows: [buildProfile({ holder: 'garry' })] });
     const ctx = buildCtx(engine);
     const result = await getCalibrationProfileOp(ctx, {});
-    expect(result?.holder).toBe('self');
+    expect(result?.holder).toBe('garry');
   });
 
   test('routes through sourceScopeOpts: scalar source-bound client gets source-scoped result', async () => {
     const rows = [
-      buildProfile({ holder: 'self', source_id: 'default' }),
-      buildProfile({ holder: 'self', source_id: 'tenant-b' }),
+      buildProfile({ holder: 'garry', source_id: 'default' }),
+      buildProfile({ holder: 'garry', source_id: 'tenant-b' }),
     ];
     const { engine } = buildMockEngine({ rows });
     const ctx = buildCtx(engine, { sourceId: 'tenant-b' });
@@ -237,8 +231,8 @@ describe('getCalibrationProfileOp (MCP)', () => {
 
   test('federated read scope sees the union of allowed sources', async () => {
     const rows = [
-      buildProfile({ holder: 'self', source_id: 'tenant-a' }),
-      buildProfile({ holder: 'self', source_id: 'tenant-z' }),
+      buildProfile({ holder: 'garry', source_id: 'tenant-a' }),
+      buildProfile({ holder: 'garry', source_id: 'tenant-z' }),
     ];
     const { engine } = buildMockEngine({ rows });
     const ctx = buildCtx(engine, { allowedSources: ['tenant-a', 'tenant-b'] });

test/calibration-profile.test.ts

@@ -32,7 +32,7 @@ interface CapturedSql {
   params: unknown[];
 }
 
-function buildMockEngine(opts: { scorecard: TakesScorecard; userHolder?: string | null }): {
+function buildMockEngine(opts: { scorecard: TakesScorecard }): {
   engine: BrainEngine;
   captured: CapturedSql[];
 } {
@@ -42,10 +42,6 @@ function buildMockEngine(opts: { scorecard: TakesScorecard; userHolder?: string
     async getScorecard() {
       return opts.scorecard;
     },
-    async getConfig(key: string): Promise<string | null> {
-      if (key === 'emotional_weight.user_holder') return opts.userHolder ?? null;
-      return null;
-    },
     async executeRaw<T>(sql: string, params?: unknown[]): Promise<T[]> {
       captured.push({ sql, params: params ?? [] });
       return [];
@@ -238,7 +234,7 @@ describe('runPhaseCalibrationProfile — phase integration', () => {
     // grade_completion, domain_scorecards_json, patterns[], voice_passed, voice_attempts,
     // bias_tags[], model_id
     expect(insert!.params[0]).toBe('default'); // source_id
-    expect(insert!.params[1]).toBe('self'); // holder (resolved via resolveOwnerHolder, no override)
+    expect(insert!.params[1]).toBe('garry'); // holder
     expect(insert!.params[2]).toBe(12); // total_resolved
     expect(insert!.params[9]).toBe(true); // voice_gate_passed
     expect(insert!.params[10]).toBe(1); // voice_gate_attempts
@@ -334,24 +330,4 @@ describe('runPhaseCalibrationProfile — phase integration', () => {
     const insert = captured.find(c => c.sql.includes('INSERT INTO calibration_profiles'));
     expect(insert!.params[0]).toBe('tenant-b');
   });
-
-  test('cold-brain summary uses resolved owner holder self when user_holder unset', async () => {
-    const { engine } = buildMockEngine({
-      scorecard: { total_bets: 0, resolved: 0, correct: 0, incorrect: 0, partial: 0,
-        accuracy: null, brier: null, partial_rate: null, unresolvable_count: 0, unresolvable_rate: null },
-    });
-    const result = await runPhaseCalibrationProfile(buildCtx(engine), {});
-    expect(result.summary).toContain('holder=self');
-    expect(result.summary).not.toContain('holder=garry');
-  });
-
-  test('configured user_holder overrides the default in the cold-brain summary', async () => {
-    const { engine } = buildMockEngine({
-      scorecard: { total_bets: 0, resolved: 0, correct: 0, incorrect: 0, partial: 0,
-        accuracy: null, brier: null, partial_rate: null, unresolvable_count: 0, unresolvable_rate: null },
-      userHolder: 'people/charlie-example',
-    });
-    const result = await runPhaseCalibrationProfile(buildCtx(engine), {});
-    expect(result.summary).toContain('holder=people/charlie-example');
-  });
 });

test/doctor-calibration-checks.test.ts

@@ -32,12 +32,6 @@ function buildMockEngine(opts: {
 }): BrainEngine {
   return {
     kind: 'pglite',
-    // #2464: checkCalibrationFreshness resolves the owner holder via
-    // resolveOwnerHolder(config emotional_weight.user_holder, else 'self'), so the
-    // mock must implement getConfig. null = key unset → resolver falls back to 'self'.
-    async getConfig(): Promise<string | null> {
-      return null;
-    },
     async executeRaw<T>(sql: string): Promise<T[]> {
       if (opts.throwOn && opts.throwOn.test(sql)) {
         throw new Error('mock engine error: ' + sql.slice(0, 50));

test/emotional-weight.test.ts

@@ -112,7 +112,3 @@ describe('computeEmotionalWeight', () => {
     expect(HIGH_EMOTION_TAGS.has('mental-health')).toBe(true);
   });
 });
-
-test('DEFAULT_USER_HOLDER is the canonical owner holder self', () => {
-  expect(DEFAULT_USER_HOLDER).toBe('self');
-});

test/owner-holder.test.ts

@@ -1,27 +0,0 @@
-import { describe, test, expect } from 'bun:test';
-import { resolveOwnerHolder, DEFAULT_OWNER_HOLDER } from '../src/core/owner-holder.ts';
-
-describe('owner-holder', () => {
-  test('DEFAULT_OWNER_HOLDER is self', () => {
-    expect(DEFAULT_OWNER_HOLDER).toBe('self');
-  });
-
-  test('defaults to self when nothing provided', () => {
-    expect(resolveOwnerHolder({})).toBe('self');
-  });
-
-  test('null/undefined config falls back to self', () => {
-    expect(resolveOwnerHolder({ configValue: null })).toBe('self');
-    expect(resolveOwnerHolder({ configValue: undefined })).toBe('self');
-  });
-
-  test('uses config value when set and no override', () => {
-    expect(resolveOwnerHolder({ configValue: 'people/charlie-example' }))
-      .toBe('people/charlie-example');
-  });
-
-  test('override beats config and default', () => {
-    expect(resolveOwnerHolder({ override: 'world', configValue: 'people/charlie-example' }))
-      .toBe('world');
-  });
-});

test/thin-client-source-scope.test.ts

@@ -0,0 +1,142 @@
+/**
+ * #2098: thin-client routing dropped --source / GBRAIN_SOURCE / .gbrain-source.
+ *
+ * The local CLI path resolves source scope in makeContext (ctx.sourceId); the
+ * thin-client route short-circuits before that and sent params verbatim, so
+ * `gbrain query --source X` against a remote brain silently searched unscoped
+ * (the server op ignores the unknown `source` key).
+ *
+ * applyThinClientSourceScope runs the engine-free tiers (flag → env → dotfile)
+ * and maps the result onto the op's `source_id` wire param. These tests fail
+ * without the fix (params.source_id stays undefined / params.source leaks).
+ */
+
+import { describe, test, expect } from 'bun:test';
+import { mkdtempSync, rmSync, writeFileSync } from 'fs';
+import { join } from 'path';
+import { tmpdir } from 'os';
+import { applyThinClientSourceScope, parseOpArgs } from '../src/cli.ts';
+import { operationsByName } from '../src/core/operations.ts';
+import { withEnv } from './helpers/with-env.ts';
+
+const queryOp = operationsByName.query;
+
+describe('applyThinClientSourceScope (#2098)', () => {
+  test('--source maps onto the query op wire param source_id', async () => {
+    await withEnv({ GBRAIN_SOURCE: undefined }, () => {
+      const params = parseOpArgs(queryOp, ['find things', '--source', 'wiki']);
+      expect(params.source).toBe('wiki'); // pre-fix state: wrong key
+      applyThinClientSourceScope(queryOp, params, '/');
+      expect(params.source_id).toBe('wiki');
+      expect('source' in params).toBe(false); // never leaks the unknown key
+    });
+  });
+
+  test('GBRAIN_SOURCE env tier fires when no flag is passed', async () => {
+    await withEnv({ GBRAIN_SOURCE: 'gstack' }, () => {
+      const params = parseOpArgs(queryOp, ['find things']);
+      applyThinClientSourceScope(queryOp, params, '/');
+      expect(params.source_id).toBe('gstack');
+    });
+  });
+
+  test('.gbrain-source dotfile tier fires when flag and env are absent', async () => {
+    await withEnv({ GBRAIN_SOURCE: undefined }, () => {
+      const tmp = mkdtempSync(join(tmpdir(), 'gbrain-thin-scope-'));
+      try {
+        writeFileSync(join(tmp, '.gbrain-source'), 'essays\n');
+        const params = parseOpArgs(queryOp, ['find things']);
+        applyThinClientSourceScope(queryOp, params, tmp);
+        expect(params.source_id).toBe('essays');
+      } finally {
+        rmSync(tmp, { recursive: true, force: true });
+      }
+    });
+  });
+
+  test('explicit --source-id on the wire wins over ambient env scope', async () => {
+    await withEnv({ GBRAIN_SOURCE: 'gstack' }, () => {
+      const params = parseOpArgs(queryOp, ['find things', '--source-id', 'wiki']);
+      applyThinClientSourceScope(queryOp, params, '/');
+      expect(params.source_id).toBe('wiki');
+    });
+  });
+
+  test('--source together with --source-id is rejected loudly', async () => {
+    await withEnv({ GBRAIN_SOURCE: undefined }, () => {
+      const params = parseOpArgs(queryOp, ['q', '--source', 'a', '--source-id', 'b']);
+      expect(() => applyThinClientSourceScope(queryOp, params, '/')).toThrow(/not both/);
+    });
+  });
+
+  test('invalid --source value is rejected loudly', async () => {
+    await withEnv({ GBRAIN_SOURCE: undefined }, () => {
+      const params = parseOpArgs(queryOp, ['q', '--source', 'Bad_Value!']);
+      expect(() => applyThinClientSourceScope(queryOp, params, '/')).toThrow(/Invalid --source/);
+    });
+  });
+
+  test('--source on an op with no source_id wire param errors instead of silently dropping', async () => {
+    await withEnv({ GBRAIN_SOURCE: undefined }, () => {
+      const op = operationsByName.add_tag;
+      expect('source_id' in op.params).toBe(false);
+      const params = { slug: 'x', tag: 'y', source: 'wiki' };
+      expect(() => applyThinClientSourceScope(op, params, '/')).toThrow(/--source/);
+    });
+  });
+
+  test('ambient env scope on an op with no source_id wire param is ignored (no throw)', async () => {
+    await withEnv({ GBRAIN_SOURCE: 'wiki' }, () => {
+      const op = operationsByName.add_tag;
+      const params: Record<string, unknown> = { slug: 'x', tag: 'y' };
+      applyThinClientSourceScope(op, params, '/');
+      expect(params.source_id).toBeUndefined();
+    });
+  });
+
+  test('ops that declare their OWN source param are left untouched', async () => {
+    await withEnv({ GBRAIN_SOURCE: undefined }, () => {
+      const op = operationsByName.put_raw_data;
+      expect('source' in op.params).toBe(true);
+      const params: Record<string, unknown> = { slug: 'x', source: 'crustdata', data: {} };
+      applyThinClientSourceScope(op, params, '/');
+      expect(params.source).toBe('crustdata');
+      expect(params.source_id).toBeUndefined();
+    });
+  });
+
+  test('get_skill: ambient scope never leaks into its non-scope source_id param', async () => {
+    await withEnv({ GBRAIN_SOURCE: 'wiki' }, () => {
+      const op = operationsByName.get_skill;
+      expect('source_id' in op.params).toBe(true); // has the param, but it is a mode switch
+      const params: Record<string, unknown> = { name: 'ingest' };
+      applyThinClientSourceScope(op, params, '/');
+      expect(params.source_id).toBeUndefined(); // would flip host catalog → brain-pack lookup
+    });
+  });
+
+  test('get_skill: explicit --source errors instead of masquerading as --source-id', async () => {
+    await withEnv({ GBRAIN_SOURCE: undefined }, () => {
+      const op = operationsByName.get_skill;
+      const params: Record<string, unknown> = { name: 'ingest', source: 'wiki' };
+      expect(() => applyThinClientSourceScope(op, params, '/')).toThrow(/--source-id/);
+    });
+  });
+
+  test('get_skill: explicit --source-id passes through untouched', async () => {
+    await withEnv({ GBRAIN_SOURCE: 'gstack' }, () => {
+      const op = operationsByName.get_skill;
+      const params: Record<string, unknown> = { name: 'ingest', source_id: 'wiki' };
+      applyThinClientSourceScope(op, params, '/');
+      expect(params.source_id).toBe('wiki');
+    });
+  });
+
+  test('no scope from any tier leaves params unchanged', async () => {
+    await withEnv({ GBRAIN_SOURCE: undefined }, () => {
+      const params = parseOpArgs(queryOp, ['find things']);
+      applyThinClientSourceScope(queryOp, params, '/');
+      expect(params.source_id).toBeUndefined();
+    });
+  });
+});