Gap ledger wave 1: route Workflow-child hooks outside project agent frontmatter; correct the TMPDIR and advisor rows - #1146

Scope

• What this PR changes, in one or two sentences: the first slot and disposition rows closed from the practice gap ledger of 2026-10-15. Workflow-child completion hooks now route outside project agent frontmatter, and the stale CLAUDE_CODE_TMPDIR and advisorModel rows are corrected.
• Base commit: 0f4ee075b
• Lane: lane:foundation
• Owned paths touched:
  • .claude/skills/claude-native-practice/reference/slots.json and workers.md;
  • the slot manifest;
  • catalogs/foundation/upstream-surface-dispositions.json (two rows);
  • tests/test_native_practice_ledger_rows_1.py (new);
  • manifests/evidence.json.

SOTA sources

• Agent frontmatter hooks: https://code.claude.com/docs/en/sub-agents, line 757 of the page fetched 2026-10-15T04:08:42Z (sha256 a0c1d6fb…265f, client 2.1.300). It says: "Until you trust the folder, the subagent still runs, but Claude Code skips its frontmatter hooks … trusting a parent folder isn't enough, and a -p session doesn't count as trusted." Line 755 says hooks from ~/.claude/agents/ definitions and from --agents run without this step.
• CLAUDE_CODE_TMPDIR: https://code.claude.com/docs/en/env-vars. The variable overrides the temp directory for internal temp files.
• Gap ledger: shards A4 (a01ddb9f…) and C1 (938f1528…), in the cc-native-practice lane's records, and snapshot 27a3ae50….

Evidence-class table

Local commands run

$ python3 -m unittest tests.test_native_practice_ledger_rows_1     # before the change
FAILED (failures=3)
$ python3 -m unittest tests.test_native_practice_*  (9 modules)
Ran 103 tests; OK (skipped=3)
$ python3 scripts/validate.py
rc 0

Follow-ups

• CC FULL at b772073 (PASS; bound to the next practice-rows PR):

  • P2 slots.json:1296: the background-workflows row still gives Workflow stages a Stop hook in the stage agent's frontmatter, with no routing, in the slot scoped to headless -p runs. The Scope claim holds for loops-completion only.
  • P3-1 claude-native-slot-manifest.json:57: the list of slots whose notes differ omits loops-completion (its notes now cite 2026-10-15), and background-workflows was already missing. No test reads the list.
  • P3-2 upstream-surface-dispositions.json:529: the row went stale rather than being wrong. By the timeline, the value was applied 2026-10-10.
  • P3-3 tests/test_native_practice_ledger_rows_1.py:32-33, :42-43: the fail-first asserts copy the new row strings, and "template unchanged" is not checked against the template.
  • P3-4 body, Local commands run: tests.test_native_practice_* is not a shell glob that matches a file. The head has 6 such modules, and tests/test_upstream_surface_watch.py is not shown run.

• GPT full1 P3 (full1-pr1146/GPT-VERDICT-b77207340.md): the inherited documentation status at workers.md:97 is out of date, including the onFailure statement, which is unchanged from the merge base.

• GPT full1 P3: the cited page does not establish every Workflow and teammate clause.

• GPT full1 P3 (one step wider): project definitions can shadow the proposed user-scope definition.

Checklist

• No GitHub Actions changed.
• No workflows changed.
• No secrets are printed, logged or committed.
• No new paid hosting, subscription or billing surface.
• Peer-owned untracked files and worktrees were preserved.

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