Reviewed the changelog rather than bumping on principle. 2.1.220 → 2.1.223 for one
reason that bears on how we use subagents:
2.1.222 — "Fixed PreToolUse auto-allow hooks bypassing tool restrictions in
background agent tasks."
Subagents run in the background by default since 2.1.198, and the `verifier`
role's entire guarantee is a TOOL restriction — no Edit, no Write. So on 2.1.220
the one property we rely on was the one that bug could undo. 2.1.221 also fixes
`--mcp-config` servers not connecting before the first turn in print mode, which
is the mode we run and will matter when the MCP door reaches a VM.
Two findings from the changelog that we already had at 2.1.220, both worth knowing:
- 2.1.219: subagents can nest to depth 3 (was 1), so our roles can delegate
further than assumed.
- 2.1.212: a subagent inherits the parent's permission mode, which confirms the
verifier's read-only property must come from `tools` and not from permissions.
That is how it was written; now the reasoning is recorded next to it.
And a correctness fix that follows from the background default: the verifier is now
`background: false`. A background verifier lets the lead carry on and write its
report before the check has finished — the finding would arrive after the
conclusion it was supposed to inform.
Verified on tank: image reports 2.1.223, rootfs rebuilt, `--vm-selftest` all green
including a real agent turn on subscription auth, egress allow and deny both firing.
The only rootfs on this track came from clawmates/agent-terminal:dev. Mounted,
it held git and nothing else: no claude, no node, no cargo. A VM booted from it
looks perfect and cannot run a mission, so B4.5 could have been written and
never verified.
images/agent-toolchain — the shared mission toolchain (node 22, git, rust +
cargo-audit, gitleaks/trivy/semgrep, tea/gitea-mcp), lifted from the proven
deploy/clawmates-runtime image minus the zeroclaw daemon: a microVM mission runs
the direct-session model, so there is no daemon to host. A base image rather
than three self-contained Dockerfiles because this layer is ~3 GB and the real
risk is scanner and toolchain versions drifting between per-CLI images — the
evaluator runs the project's own suite to check a claim, so `cargo` present in
one image and absent in another makes the same mission pass or fail by backend
with nothing saying why.
images/agent-claude — plan A6, first of three: the pinned CLI and its env
contract only, so bumping Claude Code does not rebuild the toolchain and cannot
disturb agent-kimi / agent-glm. HOME=/root with an empty .claude for B4.4 to
inject into; no ANTHROPIC_API_KEY, since it silently overrides the subscription
OAuth we already pay for.
Both the builder and the node selftest now ASK the guest for the CLI the image
is named for, instead of trusting the name. `required_cli` maps claude/kimi/glm
to a probe; an unrecognised backend reports unchecked and prints SKIP rather
than passing quietly.
Verified on tank:
- rootfs-claude.ext4 boots; git, node, cargo, a real git commit all work
- `claude --version` → 2.1.220 over vsock, in both the builder and
`--vm-selftest` (11/11, create 1498 ms)
- negative control: the same builder run against agent-terminal with
FC_CLI forced reports `cli rc=127 claude: not found` and exits 1, so the
green result above is a measurement and not a default
- `claude -p hello` fails with "Not logged in · Please run /login" — the CLI
runs headless in the VM, and B4.4 only has to supply the credential
- no leaked firecracker processes or vm dirs afterwards
437 tests pass, clippy clean.
Co-Authored-By: Claude Opus 5 <[email protected]>
Omar Sobh