---
id: T-2207
name: "T-2204 Slice B-prime — fw task create / work-on CLI gate mirrors T-1716 contract"
description: >
  Add --recommendation/--rationale gate to create-task.sh — closes the 'fw task create
  --workflow inception' producer leaf left open after T-2205 (Write/Edit hook) and
  T-2206 (consumer-side emit). Producer/consumer parity per T-1890 / L-399.

status: work-completed
workflow_type: build
owner: agent
horizon:
tags: []
components: []
related_tasks: []
# arc_id:                         # T-1849: optional — slug (e.g. "arc-grooming") OR arc-NNN (e.g. "arc-005")
#                                 # When set, must resolve to .context/arcs/<id>.yaml; PreToolUse hook
#                                 # (check-arc-id) blocks save under agent control if it doesn't resolve.
#                                 # Empty/missing → unassigned (allowed). See CLAUDE.md §Task System.
created: 2026-06-05T09:29:02Z
last_update: '2026-06-11T22:24:11Z'
date_finished: 2026-06-05T09:36:37Z
# revisit_at: YYYY-MM-DD          # T-1451: set on DEFER decisions to enable G-053 daily revisit scan
# revisit_evidence_needed:        # T-1451: one-line description of what evidence makes the revisit actionable
# ── BVP scoring fields (T-1918, arc-006). See docs/reports/T-1915-bvp-inception.md for semantics. ──
# bvp_scores:                     # confirmed per-driver scores 0-5, set by `fw bvp confirm` (T-1924).
#                                 # Sovereignty boundary — only set after human or agent confirmation.
#                                 # Shape: {D1: <int 0-5>, D2: <int 0-5>, D3: <int 0-5>, D4: <int 0-5>, [<free-driver-id>: <int>]...}
# bvp_scores_proposed:            # estimator-proposed scores (T-1922 worker). Persists when ≥2 delta
#                                 # from bvp_scores: on any driver (M3 v2-delta). Shape: list of timestamped entries.
# cost_estimate:                  # F8 composite: 0.6×blast_radius + 0.3×tier + 0.1×effort.
#                                 # Q2 fallback: T-shirt S/M/L/XL mapped to 2/4/6/8 when blast_radius is not yet computable.
cost_estimate_proposed:
  - ts: '2026-06-05T09:30:03Z'
    estimator: bvp-estimator-v1-heuristic
    cost_estimate:
      blast_radius: 0
      tier: 2
      effort: 6
    rationale: blast_radius=0 (no-signal); tier=2 (no-signal); effort=6 
      (no-signal)
    rubric_sha: e4a00f38e801
bvp_scores_proposed:
  - ts: '2026-06-05T09:30:04Z'
    estimator: bvp-estimator-v1-heuristic
    scores:
      D1: 4
      D2: 0
      D3: 2
      D4: 2
      F-RECALL: 0
      F-ORCH: 0
    rationale: D1=4 (body:structural-gate); D2=0 (no-signal); D3=2 
      (body:default-change); D4=2 (body:env-class-handled); F-RECALL=0 
      (no-signal); F-ORCH=0 (no-signal)
    rubric_sha: e4a00f38e801
  - ts: '2026-06-11T22:24:11Z'
    estimator: bvp-estimator-v1-heuristic
    scores:
      D1: 4
      D2: 0
      D3: 2
      D4: 2
      F-RECALL: 0
      F-ORCH: 0
      F3: 0
      F1: 0
      F2: 0
    rationale: D1=4 (body:structural-gate); D2=0 (no-signal); D3=2 
      (body:default-change); D4=2 (body:env-class-handled); F-RECALL=0 
      (no-signal); F-ORCH=0 (no-signal); F3=0 (no-signal); F1=0 (no-signal); 
      F2=0 (no-signal)
    rubric_sha: e4a00f38e801
---

# T-2207: T-2204 Slice B-prime — fw task create / work-on CLI gate mirrors T-1716 contract

## Context

T-2204 GO Slice B' (CLI mirror of T-1716). T-1716 ships the filing-time `--recommendation`/`--rationale` gate on `fw inception start` (under `$CLAUDECODE=1`). T-2205 (Slice B) ships the Write/Edit hook. T-2206 (Slice C) ships the consumer-side emit gate. The remaining producer leaf is **`fw task create --workflow inception`** — the direct CLI path that bypasses `do_inception_start`. `fw work-on --type inception` already routes through `do_inception_start` (bin/fw:4989-5022), so the gap is in `agents/task-create/create-task.sh`.

Producer/consumer parity (L-399 / T-1890): same env-var bypass name as Slice B/C (`FW_ALLOW_EMPTY_RECOMMENDATION=1`).

unlocks_inception_decision: [T-2204:slice-b-prime]

## Acceptance Criteria

### Agent
- [x] `create-task.sh` accepts `--recommendation GO|NO-GO|DEFER`, `--rationale "..."`, and `--i-am-human` flags. Unknown values for `--recommendation` exit 1 with clear message (parity with `do_inception_start` validation).
- [x] Filing-time gate fires when ALL of: `$WORKFLOW_TYPE`=inception AND `$CLAUDECODE`=1 AND `--i-am-human` absent AND `$FW_ALLOW_EMPTY_RECOMMENDATION` ≠ 1 AND `$FW_INCEPTION_PRE_GATED` ≠ 1 AND (`--recommendation` empty OR `--rationale` empty) → exit 1 + BLOCK message naming all bypass mechanisms.
- [x] `FW_ALLOW_EMPTY_RECOMMENDATION=1` bypass: NOTE + Tier-2 log to `.context/working/.gate-bypass-log.yaml` + continue. Symmetric with T-2205/T-2206 (T-1890 parity).
- [x] `--i-am-human` bypass: continues + logs Tier-2 entry (mirrors `do_inception_start` lines 124-136).
- [x] `FW_INCEPTION_PRE_GATED=1` bypass: silent pass-through (used by `do_inception_start` to signal "upstream already gated"; not logged because it's the internal trusted-caller path, not an agent override).
- [x] When `--recommendation` + `--rationale` are provided and an inception task file is created, the `## Recommendation` block in the new task body is populated (template comment replaced with `**Recommendation:** <value>` + `**Rationale:** <rationale>`). Mirrors `_inject_recommendation_block` (`lib/inception.sh:173+`).
- [x] `do_inception_start` updated: passes `FW_INCEPTION_PRE_GATED=1` env to its `create-task.sh` invocation. The existing `_inject_recommendation_block` post-step remains (no breaking refactor); the env signal prevents double-gating.
- [x] Build tasks (non-inception) and template-validation path (T-1263) unaffected — `## Acceptance Criteria` block stays at template; only `## Recommendation` block is mutated when flags supplied.
- [x] Block message names: (a) `FW_ALLOW_EMPTY_RECOMMENDATION=1` env-var bypass, (b) `--i-am-human` script/test bypass, (c) the canonical fix path (`--recommendation GO|NO-GO|DEFER --rationale "..."`), (d) cross-refs T-679 / T-1715 / T-1716 / T-2204 / T-2205 / T-2206. Audience-axis-correct (T-2143) — agent-facing stderr stays `### Agent` self-eval.
- [x] Unit tests in `tests/unit/create_task_inception_recommendation_gate.bats` cover: non-inception passes silently, inception+CLAUDECODE+no-rec BLOCKS, inception+CLAUDECODE+rec+rat passes + Recommendation block injected, `--i-am-human` bypass passes + logs, `FW_ALLOW_EMPTY_RECOMMENDATION=1` bypass passes + logs, `FW_INCEPTION_PRE_GATED=1` bypass passes silently (no log), `do_inception_start` regression still works end-to-end.
- [x] `fw inception start <name> --recommendation GO --rationale "..."` still works (regression — no breakage in upstream T-1716 path).

### Human
<!-- Criteria requiring human verification (UI/UX, subjective quality). Not blocking.
     Remove this section if all criteria are agent-verifiable.
     Each criterion MUST include Steps/Expected/If-not so the human can act without guessing.

     ── Prefix routing (T-1811, T-1878): default to [REVIEWER] if Expected is grep-able ──
     If your Expected clause is grep-able / file-exists / structural (a deterministic
     shell check), prefer [REVIEWER] — that AC should be an Agent AC with the reviewer
     command in `## Verification` instead of a Human AC here. Only keep [REVIEW] if
     verification genuinely needs human taste (tone, feel, layout rhythm).
     See CLAUDE.md §AC Classification Guidance for the conversion rule.

     [REVIEW] example (genuine human judgment):
       - [ ] [REVIEW] Dashboard renders correctly
         **Steps:**
         1. Open https://example.com/dashboard in browser
         2. Verify all panels load within 2 seconds
         3. Check browser console for errors
         **Expected:** All panels visible, no console errors
         **If not:** Screenshot the broken panel and note the console error

     [REVIEWER] example (static-scan-verifiable — convert to Agent AC + Verification):
       - [ ] [REVIEWER] Block message names both bypass mechanisms
         **Steps:**
         1. Run `bin/fw reviewer T-XXX`
         **Expected:** Verdict: PASS; no findings on `block-message-completeness`
         **If not:** Inspect hook block-message string and add missing mechanism
       Conversion: this AC should be moved to ### Agent and
       `bin/fw reviewer T-XXX 2>&1 | grep -q "Overall:.*PASS"` added to ## Verification.
-->

## Verification

# Shell commands that MUST pass before work-completed. One per line.
# Lines starting with # are comments (skipped). Empty lines ignored.
# The completion gate runs each command — if any exits non-zero, completion is blocked.
#
# Toolchain hint (L-291): if you edited *.vbproj/*.csproj/*.xaml add `dotnet build`;
# *.go → `go build ./...`; Cargo.toml → `cargo check`; tsconfig.json → `tsc --noEmit`;
# pom.xml → `mvn -q compile`. P-011 runs only what you write — broken builds slip
# past otherwise (origin: 003-NTB-ATC-Plugin T-077, broken WPF DLL on master 5 days).
#
# Pipefail/SIGPIPE hint (L-387): P-011 runs each command under `set -eo pipefail`.
# `cmd | grep -q PATTERN` exits 141 (SIGPIPE) when grep matches and closes stdin
# while the upstream is still writing — verification then "fails" even though
# the pattern was present. Safe pattern: capture first, grep the capture:
#     out=$(cmd 2>&1); echo "$out" | grep -q "PATTERN"
# Or:
#     cmd > /tmp/.out 2>&1 && grep -q "PATTERN" /tmp/.out
# Origin: L-387, captured 4× (T-1716, T-1838, T-1862, T-1863) before this hint.
#
# Single pipe only — no intermediate tail/awk/sed stages between capture and grep
# (T-2090): `echo "$out" | tail -3 | grep -q PAT` re-introduces the SIGPIPE risk
# the capture step closed off — the middle stage is what `grep -q` slams its
# stdin on. `echo "$out"` is small and immediate; grep scans the whole captured
# string anyway, so the tail-3 was cosmetic. Drop it: `echo "$out" | grep -q PAT`.
#
# Enforcement-baseline hint (L-398, T-1886): if you edited `.claude/settings.json`
# (added/removed/reorganised hooks), add `bin/fw enforcement baseline` to your
# Verification block. Otherwise the canonical hash diverges and `fw doctor`
# reports a FAIL ("Enforcement baseline CHANGED") that accumulates silently.
# Origin: T-1849/T-1730/T-1731 each added a legitimate hook without refreshing
# the baseline — FAIL sat for multiple sessions until T-1886 cleaned up.

bats tests/unit/create_task_inception_recommendation_gate.bats
out=$(bin/fw reviewer T-2207 2>&1); echo "$out" | grep -q "Overall:.*PASS"

## RCA

<!-- REQUIRED for bug-class tasks (workflow_type=build with bug-tag, OR title matches
     fix/bug/rca/broken/crash/error/regression/fail/hotfix).
     Non-bug-class tasks may leave this section empty or remove it.

     For bug-class, fill in:
       **Symptom:** what was observed (the user-facing manifestation).
       **Root cause:** the specific structural/logical gap — not "the code was wrong".
       **Why structurally allowed:** what in the framework/code/tooling let this go undetected.
       **Prevention:** what catches the next instance (test/lint/gate/doc/learning) — distinct from the fix itself.

     The completion gate (T-1550, G-019) blocks --status work-completed when
     bug-class AND this section is empty/template-only. Use --skip-rca to bypass (logged).
-->

## Evolution

<!-- REQUIRED for arc-tagged build tasks (tags include arc:*). Captures how
     understanding evolved during build — what was learned that wasn't known at
     filing, what in the original plan no longer fits, what triggered pivots
     or new sub-tasks. Mandatory at slice boundaries (when applicable) and
     before --status work-completed.

     Origin: T-1717 grill Q4 — "the understanding of what we need and want
     evolves with the process of materialisation." Structural counter to §ACD:
     spec-vs-build divergence is logged as soon as it happens, not lost as
     folklore.

     Format (one entry per slice boundary or significant insight):
       ### YYYY-MM-DD — [topic]
       - **What changed:** [what we learned that we didn't know at filing]
       - **Plan impact:** [what in the plan no longer fits]
       - **Triggered:** [new sub-task / pivot / scope cut, with task ID if filed]

     The completion gate (T-1718) blocks --status work-completed when this
     section exists but is empty/template-only. Use --skip-evolution to bypass
     (logged Tier-2). Non-arc tasks may leave this empty.
-->

## Decisions

<!-- Record decisions ONLY when choosing between alternatives.
     Skip for tasks with no meaningful choices.
     Format:
     ### [date] — [topic]
     - **Chose:** [what was decided]
     - **Why:** [rationale]
     - **Rejected:** [alternatives and why not]
-->

## Decision

<!-- Filled at completion of inception tasks via:
     fw inception decide T-XXX go|no-go|defer --rationale "..."

     For non-inception tasks this section is ignored. Kept in template
     so `fw inception decide` (lib/inception.sh) finds the anchor heading
     without auto-creating; T-1832 added auto-create as fallback for
     legacy tasks lacking this section. -->

## Updates

### 2026-06-05T09:29:02Z — task-created [task-create-agent]
- **Action:** Created task via task-create agent
- **Output:** /opt/999-Agentic-Engineering-Framework/.tasks/active/T-2207-t-2204-slice-b-prime--fw-task-create--wo.md
- **Context:** Initial task creation

## Reviewer Verdict (v1.5)

- **Scan ID:** R-1e761beb
- **Timestamp:** 2026-06-05T09:36:40Z
- **Catalogue:** v1.3-seed
- **Overall:** PASS
- **Needs Human:** no
- **Findings:** none

- **Suppressed:** 1 (by override)
  - mock-only-integration @ AC vs Verification cross-check

### 2026-06-05T09:36:37Z — status-update [task-update-agent]
- **Change:** status: started-work → work-completed
