---
id: T-1892
name: "fabric enrichment sweep — auto-resolve 47 cards (+143 edges), close audit WARN"
description: >
  fabric enrichment sweep — auto-resolve 47 cards (+143 edges), close audit WARN

status: work-completed
workflow_type: build
owner: agent
horizon:
tags: [maintenance, fabric, audit-warn-close]
components: []
related_tasks: [T-1890, T-1891]
# 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: 2026-05-18T06:30:42Z
last_update: '2026-06-11T22:24:02Z'
date_finished: 2026-05-18T06:44:39Z
# 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_scores_proposed:
  - ts: '2026-06-11T22:24:02Z'
    estimator: bvp-estimator-v1-heuristic
    scores:
      D1: 4
      D2: 4
      D3: 0
      D4: 2
      F-RECALL: 1
      F-ORCH: 0
      F3: 0
      F1: 0
      F2: 1
    rationale: D1=4 (body:structural-gate); D2=4 (body:fw-audit-or-doctor); D3=0
      (no-signal); D4=2 (body:env-class-handled); F-RECALL=1 
      (body:episodic-only); F-ORCH=0 (no-signal); F3=0 (no-signal); F1=0 
      (no-signal); F2=1 (body/components:component-fabric-incidental)
    rubric_sha: e4a00f38e801
---

# T-1892: fabric enrichment sweep — auto-resolve 47 cards (+143 edges), close audit WARN

## Context

The session-start handover surfaced an audit WARN: "Fabric: 38/627 cards have no edges". `fw fabric enrich --dry-run` reports 47 cards eligible for auto-enrichment (+66 forward, +77 reverse = 143 edges) using the framework's existing static-scan inference. This is a mechanical cleanup that directly supports `fw fabric blast-radius [ref]` (CLAUDE.md §Component Fabric) — every missing edge degrades the impact analysis used before commits. Bounded scope: run the framework-provided enrichment script, verify edge counts increased, commit.

## Acceptance Criteria

### Agent
- [x] `bin/fw fabric enrich` (without --dry-run) runs successfully.
- [x] Post-enrichment, `bin/fw fabric drift 2>&1 | grep -oE "unregistered: [0-9]+, orphaned: [0-9]+, stale: [0-9]+"` reports unregistered: 0, orphaned: 0 (stale count may stay non-zero — those are directory-target deps the enricher doesn't address).
- [x] `bin/fw audit 2>&1 | grep "cards have no edges"` shows a smaller number than 38 (likely close to 0; some cards genuinely have no static-detectable deps).
- [x] All YAML files under `.fabric/components/` still parse cleanly: `python3 -c "import yaml; [yaml.safe_load(open(p)) for p in __import__('glob').glob('.fabric/components/*.yaml')]"` exits 0.
- [x] No card outside the 47-card touch set was modified (verify via `git diff --stat .fabric/components/ | wc -l`).


## 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.
#
# 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.

# T-1892 verification (L-387/L-393 safe pattern — capture first, then test):
python3 -c "import yaml, glob; [yaml.safe_load(open(p)) for p in glob.glob('.fabric/components/*.yaml')]"
test "$(bin/fw fabric drift 2>&1 | grep -c 'unregistered: 0, orphaned: 0')" -ge 1

## 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.
-->

## Recommendation

**Recommendation:** GO

**Rationale:** Mechanical enrichment closed ~half of the fabric-edge WARN (38 → 18 cards with no edges). The enricher introduced 7 spurious `C-NNN` target entries across 4 cards (control-IDs from CLAUDE.md misclassified as component IDs); I scrubbed those surgically so this commit's net effect is "all-good edges added, no new false positives." Pre-existing C-NNN entries in 73 other cards remain — out of scope for this slice (separate follow-up).

**Evidence:**
- `bin/fw fabric enrich` ran cleanly; 47 cards processed, +66 forward + +77 reverse = 143 edges
- Surgical scrub of 4 cards (audit_anchor_task_existence, audit_ctl013_skip_nested_audit, audit_ctl_arc_tag_only_pattern, check_active_task_switch_focus) removed 7 newly-added `C-NNN` spurious entries — all under the touch set
- `python3 -c "import yaml, glob; [yaml.safe_load(open(p)) for p in glob.glob('.fabric/components/*.yaml')]"` — exit 0
- `bin/fw fabric drift` — `unregistered: 0, orphaned: 0`
- `bin/fw audit` (latest snapshot in `.context/audits/2026-05-18.yaml`) — `Fabric: 18/628 cards have no edges` (was 38)

**Follow-up candidates (do NOT block T-1892 closure):**
1. **Enricher C-NNN false-positive class** — the static-scan inference is matching control-ID references (`C-001`/`C-002` from CLAUDE.md §Inception Discipline) as if they were component IDs. Worth a single-line regex fix in the enricher to exclude single-letter prefix codes other than `T-`/`L-`/`G-`/`D-`/`OV-`/etc., or to require the target to resolve to an existing component card before writing. 73 cards still carry pre-existing C-NNN spurious entries.
2. **Fabric corpus scrub** — once #1 lands, sweep the 73 cards with pre-existing C-NNN entries.

## Decisions

### 2026-05-18 — keep enrich + scrub vs revert
- **Chose:** Keep the 140 mostly-good edges; surgically scrub the 7 newly-added C-NNN false positives.
- **Why:** Net value-additive. Reverting would discard real improvements (47 cards moved from no-edges to has-edges) for the cost of 7 false positives — bad trade.
- **Rejected:** Wholesale revert + file a "fix enricher first" task — would have parked the WARN-close indefinitely behind a separate fix that may take multiple sessions to land.


## 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

### 2026-05-18T06:30:42Z — task-created [task-create-agent]
- **Action:** Created task via task-create agent
- **Output:** /opt/999-Agentic-Engineering-Framework/.tasks/active/T-1892-fabric-enrichment-sweep--auto-resolve-47.md
- **Context:** Initial task creation

## Reviewer Verdict (v1.5)

- **Scan ID:** R-046edd59
- **Timestamp:** 2026-06-02T15:00:18Z
- **Catalogue:** v1.3-seed
- **Overall:** PASS
- **Needs Human:** no
- **Findings:** none
### 2026-05-18T06:44:39Z — status-update [task-update-agent]
- **Change:** status: started-work → work-completed
