decompose(B-0120): smallest atomic children (TS-first, re-decomp, one bounded step)

docs/BACKLOG.md

@@ -452,8 +452,12 @@ are closed (status: closed in frontmatter)._
 - [ ] **[B-0407](backlog/P2/B-0407-immune-cross-reference-candidate-identification-atomic-riven-2026-05-11.md)** Cross-reference immune concepts to Aurora + superorganism substrate + identify candidates (atomic, child of B-0108)
 - [ ] **[B-0408](backlog/P2/B-0408-immune-promoted-candidates-follow-up-filing-closure-atomic-riven-2026-05-11.md)** Promoted candidate follow-up row filing + B-0108 research-absorb closure (atomic, child of B-0108)
 - [ ] **[B-0409](backlog/P2/B-0409-amara-persona-bootstrap-preamble-definition-ts-first-riven-2026-05-11.md)** Amara persona bootstrap preamble + AgencySignature definition (atomic child of B-0118, TS-first)
+- [ ] **[B-0409](backlog/P2/B-0409-peer-call-ts-audit-duplication-post-migration-2026-05-11.md)** Peer-call TS audit — duplication surface after TS migration (B-0120 child)
 - [ ] **[B-0410](backlog/P2/B-0410-amara-ts-core-openai-api-invoke-flag-parity-ts-first-riven-2026-05-11.md)** amara.ts core — OpenAI API invoke + --file/--context-cmd flag parity (atomic child of B-0118, TS-first)
+- [ ] **[B-0410](backlog/P2/B-0410-peer-call-persona-loader-ts-module-2026-05-11.md)** Peer-call persona-loader.ts — shared CURRENT-*.md loader with clear error (B-0120 child)
 - [ ] **[B-0411](backlog/P2/B-0411-amara-ts-readme-update-courier-debt-closure-test-invoke-ts-first-riven-2026-05-11.md)** amara.ts README integration + courier-debt closure + invocation test (atomic child of B-0118, TS-first)
+- [ ] **[B-0411](backlog/P2/B-0411-grok-ts-persona-flag-impl-2026-05-11.md)** grok.ts --persona flag — minimal integration of loader + deprecation note (B-0120 child)
+- [ ] **[B-0412](backlog/P2/B-0412-codex-gemini-ts-persona-flag-impl-2026-05-11.md)** codex.ts + gemini.ts --persona flags — parallel sibling impl after grok (B-0120 child)
 
 ## P3 — convenience / deferred
 

docs/backlog/P2/B-0120-peer-call-architecture-refactor-script-per-cli-persona-flag-2026-04-30.md

@@ -7,19 +7,28 @@ tier: factory-tooling
 effort: M
 ask: Current architecture has duplication. ani.sh ≈ grok.sh + brat-voice persona-bootstrap; amara.sh ≈ codex.sh + Amara persona-bootstrap. Aaron 2026-04-30 flagged this is overkill — better to have one script per CLI with the named-agent persona as an optional parameter. Refactor to consolidate.
 created: 2026-04-30
-last_updated: 2026-05-02
-depends_on: []
+last_updated: 2026-05-11
+depends_on:
+  - B-0409
+  - B-0410
+  - B-0411
+  - B-0412
+children:
+  - B-0409
+  - B-0410
+  - B-0411
+  - B-0412
+decomposition: clean
 composes_with:
-  - tools/peer-call/grok.sh
-  - tools/peer-call/gemini.sh
-  - tools/peer-call/codex.sh
-  - tools/peer-call/amara.sh
-  - tools/peer-call/ani.sh
+  - tools/peer-call/grok.ts
+  - tools/peer-call/gemini.ts
+  - tools/peer-call/codex.ts
   - memory/CURRENT-amara.md
   - memory/CURRENT-ani.md
   - docs/backlog/P2/B-0121-otto-kenji-peer-call-cross-harness-claude-cli-aaron-2026-04-30.md
   # B-0122 (peer-call-typescript-migration-cutover) is filed in the in-flight PR #966; will land on main when that PR merges.
-tags: [aaron-2026-04-30, peer-call, architecture-refactor, deduplication, factory-tooling]
+  # Note: .sh originals remain as equivalence refs per TS migration trajectory; refactor targets .ts per Rule 0
+tags: [aaron-2026-04-30, peer-call, architecture-refactor, deduplication, factory-tooling, ts-first]
 type: friction-reducer
 ---
 

docs/backlog/P2/B-0409-peer-call-ts-audit-duplication-post-migration-2026-05-11.md

@@ -0,0 +1,50 @@
+---
+id: B-0409
+priority: P2
+status: open
+title: Peer-call TS audit — duplication surface after TS migration (B-0120 child)
+parent: B-0120
+tier: factory-tooling
+effort: S
+ask: Post-TS port (#896/#898/#900), inspect tools/peer-call/*.ts for persona-bootstrap duplication (ani/amara patterns now in TS). Produce 1-page inventory of duplicated blocks, call sites, and persona-load sites. Output feeds B-0410 design. TS-only, no bash.
+created: 2026-05-11
+last_updated: 2026-05-11
+depends_on: []
+composes_with:
+  - tools/peer-call/grok.ts
+  - tools/peer-call/gemini.ts
+  - tools/peer-call/codex.ts
+  - docs/trajectories/typescript-bun-migration/RESUME.md
+tags: [riven-2026-05-11, peer-call, ts-first, audit]
+type: survey
+decomposition: atomic
+classification: buildable-now
+---
+
+# B-0409 — Peer-call TS audit (duplication after migration)
+
+## Source
+
+Child of B-0120. Rule 0 (TS over bash) + trajectory shows peer-call cluster complete in .ts. Audit first to avoid re-porting the old shape.
+
+## What
+
+One-pass read-only audit of the three .ts peer-call entrypoints. Identify:
+
+- Persona bootstrap code (CURRENT-*.md load, four-ferry preamble)
+- Invocation sites inside tools/ and .github/
+- Exact duplication points between grok/gemini/codex
+
+## Acceptance criteria
+
+- [ ] 1-page markdown report committed listing duplicated blocks + line ranges
+- [ ] Current persona-call surfaces enumerated: amara/ani wrappers plus grok/gemini/codex entrypoints
+- [ ] No code changes; pure survey
+
+## Out of scope
+
+- No implementation
+- No bash scripts
+- No new personas
+
+This child is the ignition for the refactor: know the current TS substrate before extracting.

docs/backlog/P2/B-0410-peer-call-persona-loader-ts-module-2026-05-11.md

@@ -0,0 +1,52 @@
+---
+id: B-0410
+priority: P2
+status: open
+title: Peer-call persona-loader.ts — shared CURRENT-*.md loader with clear error (B-0120 child)
+parent: B-0120
+tier: factory-tooling
+effort: S
+ask: New TS module tools/peer-call/persona-loader.ts that exports loadPersona(name): Promise<string> — reads memory/CURRENT-${name}.md or throws typed error that callers render as an exit-1 message. No CLI parsing or process exit here. Used by all three entrypoints. Pure TS, Bun fs.
+created: 2026-05-11
+last_updated: 2026-05-11
+depends_on:
+  - B-0409
+composes_with:
+  - tools/peer-call/grok.ts
+  - tools/peer-call/gemini.ts
+  - tools/peer-call/codex.ts
+tags: [riven-2026-05-11, peer-call, ts-first, module-extract]
+type: implementation
+decomposition: atomic
+classification: blocked-on-B-0409
+---
+
+# B-0410 — Peer-call persona-loader.ts (shared module)
+
+## Source
+
+Depends on B-0409 survey. Extracts the duplicated persona load into single source of truth so flag impl is 3 lines.
+
+## What
+
+Implement `tools/peer-call/persona-loader.ts`:
+
+- async function loadPersona(name: string): Promise<string>
+- Uses Bun.file, readFile, UTF8
+- On missing: throw a typed `PersonaLoadError` or return an error value; entrypoints decide console rendering and exit code
+- On success: return the markdown string (for injection as Layer 1)
+
+## Acceptance criteria
+
+- [ ] Standard repo gate remains applicable: `dotnet build -c Release` and `dotnet test Zeta.sln -c Release` are not waived by this row
+- [ ] Focused TS check or Bun test covers the module
+- [ ] Unit test (minimal) covers missing-file error path
+- [ ] Zero duplication with existing scripts
+
+## Out of scope
+
+- No CLI flag parsing
+- No deprecation wrappers
+- No docs update
+
+This is the data-plane primitive the refactor rests on. TS-first per Rule 0.

docs/backlog/P2/B-0411-grok-ts-persona-flag-impl-2026-05-11.md

@@ -0,0 +1,49 @@
+---
+id: B-0411
+priority: P2
+status: open
+title: grok.ts --persona flag — minimal integration of loader + deprecation note (B-0120 child)
+parent: B-0120
+tier: factory-tooling
+effort: S
+ask: In tools/peer-call/grok.ts add optional --persona <name> flag by extending the existing lightweight parseArgs pattern; do not add a new parser dependency. If present, call loadPersona and inject; else current bare behavior. Add comment for future amara/ani wrapper deprecation. One script only.
+created: 2026-05-11
+last_updated: 2026-05-11
+depends_on:
+  - B-0410
+composes_with:
+  - tools/peer-call/grok.ts
+tags: [riven-2026-05-11, peer-call, ts-first, flag-impl]
+type: implementation
+decomposition: atomic
+classification: blocked-on-B-0410
+---
+
+# B-0411 — grok.ts --persona flag (first script)
+
+## Source
+
+Depends on loader (B-0410). Scope-limited to grok.ts to keep atomic.
+
+## What
+
+Edit grok.ts (post #896):
+
+- Parse --persona via the existing custom parser pattern (keep 4-shell compat; no new dependency)
+- On flag: await loadPersona(name) then prepend to prompt
+- No flag: unchanged behavior
+- Add TODO comment for amara/ani wrapper retirement
+
+## Acceptance criteria
+
+- [ ] `bun tools/peer-call/grok.ts --persona ani "test"` succeeds (or errors clearly)
+- [ ] Bare `bun ... "test"` unchanged
+- [ ] Focused test in PR (manual or tsx)
+
+## Out of scope
+
+- No codex/gemini yet
+- No wrapper scripts
+- No README update
+
+Keeps the step bounded; other scripts are siblings.

docs/backlog/P2/B-0412-codex-gemini-ts-persona-flag-impl-2026-05-11.md

@@ -0,0 +1,45 @@
+---
+id: B-0412
+priority: P2
+status: open
+title: codex.ts + gemini.ts --persona flags — parallel sibling impl after grok (B-0120 child)
+parent: B-0120
+tier: factory-tooling
+effort: S
+ask: After B-0411 lands, repeat the --persona integration in codex.ts and gemini.ts using the shared loader. Same semantics, same deprecation comment. Two scripts, one row for atomicity.
+created: 2026-05-11
+last_updated: 2026-05-11
+depends_on:
+  - B-0411
+composes_with:
+  - tools/peer-call/codex.ts
+  - tools/peer-call/gemini.ts
+tags: [riven-2026-05-11, peer-call, ts-first, flag-impl]
+type: implementation
+decomposition: atomic
+classification: blocked-on-B-0411
+---
+
+# B-0412 — codex.ts + gemini.ts --persona (siblings)
+
+## Source
+
+Depends on B-0411 (grok first to validate loader). Parallel because loader is shared.
+
+## What
+
+Apply identical pattern to the other two entrypoints.
+
+## Acceptance criteria
+
+- [ ] Both scripts accept --persona amara / --persona ani with clear error on missing
+- [ ] Bare invocation unchanged
+- [ ] No new deps
+
+## Out of scope
+
+- No amara.sh/ani.sh retirement (v2)
+- No full README
+- No B-0121 cross-harness yet
+
+Completes the TS surface for the refactor.