Wave 1 of a 6-session parallel build revealed three failure modes:
(1) hallucinated completion (status=completed after 2/5 steps, last
tool call was an arbitrary file review), (2) fail-late bash (3/6
sessions had push blocked inside sub-agent sandbox after all work
was done), (3) no objective verification (plans were prose).
v1.7 closes all three by making the plan an executable contract.
Per-step YAML manifest (expected_paths, commit_message_pattern,
bash_syntax_check, forbidden_paths, must_contain) is the objective
completion predicate. Plan-critic dimension 10 (Manifest quality)
is a hard gate. Session decomposer propagates manifests verbatim
and emits an obligatory Step 0 pre-flight (git push --dry-run,
exit 77 sentinel) in every session spec.
ultraexecute-local gets Phase 7.5 (independent manifest audit from
git log + filesystem, ignoring agent bookkeeping) and Phase 7.6
(bounded recovery dispatch, recovery_depth ≤ 2). Hard Rule 17
forbids marking a step passed without manifest verification. Hard
Rule 18 forbids ending on an arbitrary tool call before reporting.
Division of labor is made explicit:
- /ultraresearch-local gathers context (no build decisions)
- /ultraplan-local produces an executable contract (manifests,
plan-critic gate)
- /ultraexecute-local executes disciplined (does NOT compensate
for weak plans — escalates)
Code complete. Docs partial (Arbeidsdeling table + manifest section
added to plugin + marketplace READMEs). Verification tests
(10-sequence) pending — see REMEMBER.md.
Backward compat: v1.6 plans without plan_version marker get
legacy mode with synthesized manifests and legacy_plan: true in
progress file. Plan-critic emits advisory, not block.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Four-layer security model for ultraexecute-local and headless sessions:
Layer 1 — Plugin hooks: pre-bash-executor.mjs (13 BLOCK + 8 WARN rules
with bash evasion normalization) and pre-write-executor.mjs (8 path guard
rules blocking .git/hooks, .claude/settings, shell configs, .env, SSH/AWS).
Layer 2 — Prompt-level security rules: denylist in ultraexecute-local.md
Sub-step D and session-spec-template.md Security Constraints section.
These are the only rules that work in headless child sessions.
Layer 3 — Pre-execution plan validation: new Phase 2.4 scans all Verify
and Checkpoint commands against denylist before execution begins.
Layer 4 — Replace --dangerously-skip-permissions with scoped
--allowedTools "Read,Write,Edit,Bash,Glob,Grep" --permission-mode
bypassPermissions in ultraexecute-local.md, headless-launch-template.md,
and session-decomposer.md. Blocks Agent, MCP, WebSearch in child sessions.
Also adds Hard Rules 14-16: verify command security check, no writing
outside repository root, no writing to security-sensitive paths.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
