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chore(continuity): Tier 1b complete bar F6; record F6 deferral#35

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jimCresswell merged 1 commit into
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chore/session-handoff-tier1b
Jun 18, 2026
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chore(continuity): Tier 1b complete bar F6; record F6 deferral#35
jimCresswell merged 1 commit into
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chore/session-handoff-tier1b

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Continuity reconciliation after Tier 1b: F3 (#31), F8 (#33), and F5+F7 (#34) are
merged; main is green. F6 (the agent_hooks.py guardrail hardening) is
deferred
with a full analysis recorded in the gate-expansion thread:

  • It modifies the safety hook that runs on every bash command.
  • "Fail-closed on $(/backticks" is ambiguous — a blanket deny would break
    legitimate command substitution, including the agent's own
    git commit -m "$(cat <<EOF …)" heredoc pattern.
  • The hook runs on the working-tree copy, so a bad edit self-locks the agent.
  • Recommended safe design (pipe-as-separator + recurse-into-substitution, not
    blanket-deny) and a mandatory pre-verification step are recorded for the
    dedicated, owner-clarified session that should pick it up.

Next session resumes at F6 → Tier 3 → Tier 2 → merge release PR #25.

🤖 Generated with Claude Code

…alysis

Reconcile continuity/thread/plan/napkin after merging F3 (#31), F8 (#33), and
F5+F7 (#34). main is green; Tier 1b is complete except F6. Record the full F6
deferral rationale and recommended safe design: the agent_hooks.py guardrail
runs on every bash command, the "fail-closed on $( /backticks" requirement is
ambiguous (a blanket deny would break the agent's own heredoc commits), and a
bad edit self-locks — so F6 needs owner intent + a dedicated security-reviewed
session. Next session resumes at F6, then Tier 3, then Tier 2, then release #25.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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Code Coverage Overview

Languages: Python

Python / code-coverage/pytest

The overall coverage remains at 89%, unchanged from the branch.


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@jimCresswell jimCresswell merged commit 5640661 into main Jun 18, 2026
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@jimCresswell jimCresswell deleted the chore/session-handoff-tier1b branch June 18, 2026 10:25
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