f8438c32ea49679059442a9817fa42f71a91b9ae
15
Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
 Omar SobhandClaude Opus 5
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9e61e3ba35 |
feat(viz): what the agents actually did, as structured events
The World could draw a mission's shape but nothing about the work. The
detail existed only as prose in checkpoint.log and model output, where a
tool name is indistinguishable from an agent *talking about* a tool — so
it was never parsed, deliberately. `mission_events` is the structured
channel that replaces it.
Three taps, one table:
- Container tier: the `_ => {}` at the end of topology_exec's typed frame
stream now matches `tool_call` and reads the tool's JSON ARGUMENTS for a
path. Never the prose summary — a path scraped from a sentence would put
files on the map that no agent opened, and the test proves a Grep whose
summary says "src/main.rs" produces no file touch. The frame name itself
is unverified, so the same commit ships an unmatched-frame-type
histogram: a tap that matches nothing looks exactly like a mission that
used no tools, and this is how one gw-04 run names the real frame.
- microVM tier: a `PostToolUse` hook, the seam vm_stop_gate already proved
fires under `claude -p`. It copies stdin to /root/tap and exits 0
unconditionally — a non-zero PostToolUse hook talks back to the model,
which would turn the observer into a participant. Drained before collect,
since the VM is destroyed moments later.
- Phase transitions: five identical copies of the pending→running UPDATE
became one `mark_phase_running`, and `close_finished_phases` grew
RETURNING. Its CASE decides each phase's status inside SQL from rows the
statement does not change, so it cannot be re-derived afterwards without
writing that CASE twice — without RETURNING it emits zero phase.completed
and reports success.
The settings.json hazard the plan called out: the stop gate wrote the
WHOLE document, so a second hook writer would have silently erased it and
a coding phase would then complete having written nothing — the exact
failure the gate exists to catch. There is now one composer,
`vm_tool_tap::guest_settings`, one writer, and a source-walk test that
fails if anything else writes a settings document.
`mission_events.run_id` carries no FK on purpose: phase_runner DELETEs
topology_runs on retry, and a cascade would erase a phase's whole history
the moment it retried — silently, since a cascade is not an error.
world.rs streams it with a cursor that separates backfill from motion.
Everything already in the table when a subscriber arrives is drawn as
settled history; only what lands afterwards animates. Otherwise opening a
finished mission replays an hour of tool calls as a burst storm.
Bounded twice: 400 events per phase (enforced inside the INSERT, since
two concurrent taps would each read a count below the cap) and a 7-day
retention sweep in mission_gc.
Co-Authored-By: Claude Opus 5 <[email protected]>
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Omar SobhandClaude Opus 5
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768e106614 |
fix(microvm): a mission with no repository can run in a VM, and its work comes back
Two halves, and the first was worse than the plan assumed. `run_phase_in_vm`
packed `<missions_root>/<mission>/repo` unconditionally — a directory a
repo-less mission does not have — and then required `/mission/repo/.git` inside
the guest before spending a turn. So a repo-less microVM phase did not merely
go uncaptured: it failed before the agent ran.
A repo-less mission now gets an EMPTY workspace at the same guest path, created
host-side so the collect unpacks back over it with no special case, and the
readiness probe asks for what was actually sent — the directory rather than a
`.git` that was never going to be there.
`mission_outputs` then drops its `runtime_kind <> 'microvm'` exclusion, whose
stated reason ("a microVM mission always has a checkout") is exactly what
stopped being true. Where the files come from now depends on the runtime, and
the difference is not cosmetic: a container mission's output is still inside a
running container, while a VM's has already been unpacked onto the host by the
end-of-turn collect. Asking docker for a VM mission's files would query a
container that never existed.
The recursive copy skips symlinks rather than following them — a link out of
the tree would publish whatever it points at.
`research-vm` is the proof, added to the suite as well as the dispatch: the same
assertions as `research-only` with `runtime_kind: microvm`. A scenario nobody
runs is a scenario that does not exist.
Co-Authored-By: Claude Opus 5 <[email protected]>
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Omar Sobh
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3a2d76aa43 |
feat(placement): capacity model for the fleet — observed memory is not capacity
Phase 1a of the fleet-intelligence plan: the arithmetic and the inputs. Nothing is wired to it yet; the launch path still picks `capable.first()`. Placement has been `ORDER BY last_seen DESC` + `.first()` — the most recently heartbeated node. Among healthy nodes all heartbeating every 5s that is arbitrary, and it consults nothing about load, so two missions launched together land on the same machine. It did not matter while tank held the only rootfs image. All three nodes serve `claude` as of today. THE correctness point, and the reason this is not a sort change: a VM that booted 30 seconds ago holds a fraction of its 8 GiB claim, so `mem_pct` reports a sold-out node as nearly idle. `capacity_of` takes the WORSE of observed usage and committed usage. The negative control pins it with the measured case — tank at 60 GiB total / 12 GiB observed / 5 VMs booted: utilisation alone says 5 more fit, the node has room for 1. Booking those five is a node in swap, which slows every VM on it together. Commitments are unioned BY IDENTITY, never added: `vm_list` reports booted VMs, `nodes::pinned_microvm_phases` reports phases chosen but not yet booted (a window of seconds in which a real 8 GiB claim exists that no node can report). The deterministic `vm_id_for` is what lets the same phase be recognised in both — counting it twice would shrink the fleet by the number of phases starting. `EvalRow::headroom()` finally gets a caller. It was written with the doc comment "for placement ranking" and has had zero callers since. It is a TIEBREAK, not a gate: ranking is slots first (spread, don't stack), then live headroom, then node id so the same fleet state yields the same answer twice — which `last_seen DESC` could never promise. Fail-closed per house convention: draining, stale health (>30s, tuned just above the 20s offline sweeper), and an unanswerable `vm_list` are all INELIGIBLE rather than low-scoring. Stale Beszel metrics are the one exception — they demote a node to zero headroom instead of excluding it, because they only ever break ties. `FleetAtCapacity` and `FleetUnreadable` are separate variants with a test asserting the second never says "at capacity": an operator sent hunting a load problem that is really a dead daemon wastes the outage. Also names the two nodes that were both called "New node" (tank, morpheus) — a capacity report naming two machines identically is one nobody can act on. 257 lib tests. |
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Omar Sobh
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0b89b8316c |
feat(observability): stream a microVM turn's stdout/stderr to the platform live
The Live tab showed nothing while a turn ran, and the agent's own account of it
went to stderr on the node and nowhere a user could reach. This is the path that
carries it.
The blocker was the guest agent. `fcagent` handled one connection at a time,
inline, so during an hour-long turn the VM accepted nothing — which is why every
existing probe (subagents, stop-gate blocks, cap) runs AFTER the turn rather than
during it. It now spawns a thread per connection, wrapped in `catch_unwind`
because this process is pid 1: a panic used to take the accept loop with it, and
an unbootable VM is a far worse outcome than a missing log. A failed spawn logs
and keeps accepting rather than dropping the listener.
PROVED against a live VM before building on it, since "sound reasoning about this
system" and "measurement" have diverged repeatedly today. Patched rootfs, booted
under Firecracker, ran an 8s exec and a concurrent tail:
exec took 8.0s ok=True
+0.0s 'line1\nline2\n' +1.2s 'line4\n' +3.2s 'line6\n' +6.0s 'DONE\n'
VERDICT: CONCURRENT — tail returned data before exec finished
The rest is the pattern the terminal already uses. New `tail` op streams a file
by OFFSET (so a dropped link resumes instead of replaying, and the tail always
terminates — one that never returns pins a thread for the life of the VM). The
node follows the log alongside the turn and pushes `Uplink::VmOut { run_id, at,
data }` over the WebSocket it already holds, mirroring `PtyOut`. The server does
what `PtyOut` deliberately does not: it APPENDS to the run's checkpoint as well
as fanning out, because a terminal has no history worth keeping and a mission log
is the record of what the agent did. `run_events_sse` emits the new bytes as
`step` events, which the live pane already renders — no frontend change.
The turn is `tee`d, not redirected: the file feeds the live stream and stdout
still becomes `VmOutcome::summary`. A redirect would have produced a live view
and an empty summary, which is the same green-and-empty shape as the bug this
fixes. Tested, along with the log living outside the collected tree so it never
lands in a user's delivered diff.
246 lib tests, 20 binaries; node and fcagent build clean.
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Omar Sobh
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b36ae00ea5 |
fix(missions): a gate that gave up completed the phase green
`done_when_check` is run in exactly one place: the Stop hook inside the guest. Nothing outside it has ever re-run the command — not the evaluator (which judges the PROSE `done_when`), not capture, not delivery. The hook is capped at MAX_BLOCKS so a stuck agent cannot wedge the turn. At the cap it logs `cap: <reason>` and exits 0, releasing the agent with its check still failing. That release was invisible: rc was 0 and the work collected, so both signals the run status was decided from said "fine", and the phase completed. Green phase, unmet condition, no error anywhere — the same silent-success shape this project keeps paying for. The block COUNT cannot fix it. Three blocks then a stop that finally passed and three blocks then a surrender both report `blocks: 3`, and they are opposite outcomes. So the gate now writes a `capped` marker file, probed back out of the guest alongside the block count, and `Some(true)` fails the run on BOTH paths — solo (phase_runner) and composed (microvm_turn_executor). A marker file rather than grepping the log: a block reason embeds the check's own output, so an output line starting `cap:` would read as a release that never happened. Also corrects the comment in `per_node` that sent me looking. It claimed "the phase-level check still runs post-hoc", conflating two mechanisms — that is true of `require_changes` (via `empty_delivery_is_a_failure`) and was never true of `check`. Negative controls, both ablated and confirmed failing: drop the enforcement and `a_node_whose_gate_gave_up_fails_the_run` fails; stop writing the marker and `a_gate_that_gives_up_records_that_it_gave_up` fails. And the control against over-strictness — `a_node_that_was_blocked_and_then_succeeded_passes` — is why this keys on the marker instead of the count. 231 lib tests pass. |
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Omar SobhandClaude Opus 5
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a48d78f8eb |
test(missions): a composed node is offered the same help as a solo one
Every composed run so far reports `subagents: 0`, and the honest question is whether that is the tasks being small or the capability being absent. It is the former, and this is what says so: a composed node's task text is built by `microvm_turn_executor` and then wrapped by the SAME `vm_prompt` inside `run_inside`, so one prompt builder serves both paths and both carry the `Agent` tool offer and the `verifier` / `explorer` roles. Asserted rather than left to code reading, because if someone gave composed nodes their own prompt without the offer, the difference would show up only as a count nobody was watching — and "the graph fanned out but no node did" is indistinguishable from "no node needed to". The roles are read from `agent_definitions()` rather than spelled out, so adding a role without mentioning it in the prompt fails here instead of shipping a role the lead is never told about. 535 tests pass, clippy clean. Co-Authored-By: Claude Opus 5 <[email protected]> |
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Omar SobhandClaude Opus 5
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6991e21f94 |
feat(missions): the completion gate, moved into the agent's own loop
Every check this platform makes on a phase runs AFTER the agent has stopped: the
evaluator judges `done_when`, capture notices a coding phase delivered nothing,
and either verdict costs a whole new VM — a fresh boot, a fresh inject, and an
agent starting over with none of the context that got it that far. Meanwhile the
documented failure mode of a long-running agent is that it stops too early.
MEASURED FIRST, because the plan's chosen seam does not exist here. Probing every
hook name under `claude -p` (2.1.222, hermetic `--settings` file): `SessionStart`,
`UserPromptSubmit`, `PreToolUse`, `PostToolUse`, `SubagentStop` and `Stop` fire;
`TaskCreated`, `TaskCompleted`, `TeammateIdle`, `SessionEnd`, `Notification` and
`PreCompact` do not. The agent-teams hooks Slice 3 deferred are inert on our path
BY CONSTRUCTION — no team forms in print mode at all — so `done_when` could never
have been wired through `TaskCompleted` exit 2. `Stop` is the seam.
`vm_stop_gate` generates a POSIX `sh` hook installed via `--settings`, under
`/root/gate` and never under `/mission/repo` (anything there is collected and
arrives in the user's delivered patch). It refuses a stop when:
- the phase must deliver and the repository is untouched — asked as TWO
questions, since an agent that committed leaves a clean tree and an agent
that did not leaves HEAD alone; only both together mean nothing happened;
- `config.done_when_check` — a command the phase author wrote — exits nonzero,
in which case its OUTPUT is the feedback, not just "the check failed".
Deliberately mechanical. NOT the `done_when` verdict: that is an LLM judgement
made host-side by a different provider on purpose, and re-running it inside the
VM would put the agent's own environment in charge of grading the agent — the
correlated failure the independent judge exists to break.
THE CAP IS LOAD-BEARING. Without a ceiling a stuck agent is blocked, retries, is
blocked again, and burns the hour-long turn budget instead of failing visibly.
After 3 blocks the gate lets it stop, records that it gave up, and leaves the
verdict to the existing post-hoc path, which is unchanged.
PROVEN AGAINST A LIVE AGENT with the REAL generated artifacts, not a paraphrase:
- a read-only task → blocked 3 times with our exact message, released at
exactly the cap, and the agent took the escape hatch the message offers
("if the task genuinely requires no code change, say so explicitly") rather
than touching a file to satisfy the gate. It did not Goodhart it.
- a task that needs an edit → `blocks: 0`, log says `pass`. No false positives.
Two things that could fail silently, both closed. `--settings` is PROBED in the
image before use (`claude --help | grep`), because an unknown option is a hard
CLI error that would turn every gated phase into a failed one; a build without
it degrades to ungated and says so, since losing a check is better than losing
the work. And `stop_blocks` is reported out of the guest — `None` for no gate,
`0` for got-it-right-first-time — so a gate that never fires is distinguishable
from one that was never installed.
`require_changes` does NOT apply per node on a composed run: a graph's verifier
node is SUPPOSED to leave the tree alone, and a per-node gate would refuse its
stop three times for doing its job. `StopGate::per_node` drops it and keeps the
declared check. The phase-level rule still runs post-hoc against what the last
node collected.
An ungated phase's command is byte-identical to before, asserted by test — most
phases are gated, so the ungated path is the one nobody would notice breaking.
517 tests pass, clippy clean.
Co-Authored-By: Claude Opus 5 <[email protected]>
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Omar SobhandClaude Opus 5
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12147a1e01 |
feat(missions): Slice 4 — the two engines composed, with the file handoff proven
`team_engine='composed'` (the third name migration 0069 anticipated) runs a
mission as a durable ZeroClaw graph whose every node is a whole
Claude-Code-in-a-microVM session. Engine Z owns checkpoint/resume, cancellation
and per-node heterogeneity; Engine C owns shared context and cheap fan-out;
neither has the other's asset, which is why this is a composition and not a
compromise.
`MicroVmTurnExecutor` implements the existing `TurnExecutor`, so it inherits the
planners, the checkpoint, the stale-run recovery, `close_finished_phases`, the
evaluator, capture and delivery unchanged — the same trick `SubTopologyExecutor`
already plays with a heavy `run_turn`. Producer side emits ONE `queued` row
carrying the real graph and lets the worker claim it: the durability IS being
worker-driven, and the solo path's `tokio::spawn` has none of it. Still exactly
one `topology_runs` row per unit of work and one completion path — `finish()` is
now that one place, shared by every tier.
THE TRAP, solved and proven. A VM is inject → run → collect → destroy, so a
per-node VM with text-only handoff silently loses every file an earlier node
wrote: node 2 boots from the original checkout, sees nothing, and still reports
success. The mission's host checkout is the medium — every node injects from it
and collects back over it — and two properties make that safe rather than lucky:
`execute_resumable` is strictly sequential, so two VMs never write one directory;
and the vm id is deterministic per (phase, iteration, step), so a duplicate is
refused by the node ("vm already exists") instead of becoming a second writer.
NEGATIVE CONTROL, run rather than assumed: with `repo` swapped for a private
per-node workspace, `a_later_node_sees_an_earlier_nodes_files` FAILS with
`saw:[]`; restored, it passes. The `PhaseVm` seam exists for exactly this — it
models inject/collect through the real `mission_fs` tar path in milliseconds.
Two durability traps this tier walks into, both closed:
- `requeue_stale` fires at 180s on `updated_at`, and one node here can run for
an hour. `SubTopologyExecutor` keeps its parent alive from each leaf step;
there is nothing between the start and end of a VM turn, so the turn holds a
ticker that touches `updated_at` every 30s and aborts on drop. Without it a
healthy composed run is requeued mid-node and boots a second VM.
- the 15-minute stuck-run reaper asks "any step records since it was CREATED?",
which describes a healthy composed run as readily as a wedged one. Hence
`REAPABLE_TIERS` — worker-driven minus this tier. Reaping it would be #54 in
a different costume.
`on_launch` mints no team for a microVM mission, deliberately: claws in
containers are what a VM mission does not use. So `mission_orchestrator::
composed_graph` builds the shape from the team template directly — nodes, roles
and pattern, zero claws provisioned. Per-node `attrs["backend"]` and
`attrs["node_id"]` override the mission's, which is what makes a validator node
on another provider's image a first-class graph node; a malformed `node_id`
fails the node rather than quietly running it where the graph did not ask.
Refusals are recorded as a failed run, not returned as an error: `launch_phase`
is swept every ten seconds, so a returned error is a phase that retries forever
while the log repeats itself.
501 tests pass, clippy clean. NOT yet proven end to end: no composed mission has
run on the fleet, so the resume-after-a-killed-worker leg is argued from the DB
test and the step-numbering test, not from a real two-node run.
Co-Authored-By: Claude Opus 5 <[email protected]>
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Omar Sobh
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d49acaed5e |
fix(missions): exclude build output from COLLECT too, not just inject
The other half of the same bug. The previous commit filtered `mission_fs::pack_dir` (the inject side) and left the guest's `op_get` tarring everything, so the re-run that proved the #54 fix — it survived 480s where it used to die at 210 — still lost its work to `vm_collect ... node timed out`. Two modules written, four subagents used, nothing delivered. `op_get` now takes an `exclude` list, sent by the host from `mission_fs::transport_excludes()` — the same list `mission_delivery` uses for the diff. Policy in one place, applied at both ends of the wire. Matched on directory NAME at any depth, so a workspace's per-crate `target/` dirs are all covered, with a test that plants a nested one and asserts it does not come along. Also proven by that run: the worker no longer kills a live microVM run. It ran 480 seconds straight through the 180s requeue window and the 210s mark where mission 019fd43e died, untouched. And `subagents: 4` — the team addendum did drive real fan-out this time, which is the first evidence the Slice 3 switch does anything. 483 tests pass, clippy clean. Still to prove: a >3-minute mission that actually DELIVERS. The collect fix is tested in isolation but has not yet carried a real mission's work back, and the guest agent needs rebuilding into the rootfs before it can. |
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Omar Sobh
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4efcde9d4f |
fix(missions): #54 — the worker was killing live microVM runs at 180 seconds
My hypothesis in #54 was WRONG, and it was wrong because I built it on a bad measurement: `grep -c 'microvm phase'` returned 0, so I concluded the completion log never printed and blamed the 15-minute reaper. The line was there all along, at 14:17:45. The real cause is worse. `requeue_stale` has NO TIER FILTER. A microvm run's `updated_at` is written once at insert and never again — it is driven by a `tokio::spawn` that owns it start to finish, and nothing in `microvm_executor` writes `topology_runs`. So at 180s the sweeper declared a perfectly healthy run stale and flipped it to `queued`; `claim_next_queued` (no tier filter either) handed it to the worker; `run_job` tried to parse the microvm graph placeholder, which `TopologyGraph` cannot deserialize; and it failed the run with "missing or invalid graph". Mission 019fd43e: run created 14:11:16, mission failed ~14:14:46. 210 seconds — the 180s window plus a tick. The agent went on working and finished at 14:17:45 with three modules written, by which time the phase was already dead and the VM was orphaned. A firecracker process was still alive 1h37m later. THE UNCOMFORTABLE PART: every microVM mission that appeared to work this session did so only by finishing inside three minutes. The 90-second ones dodged this. The harness scenario dodges it. Nothing about that was visible. `WORKER_DRIVEN_TIERS` (team, company, org, swarm, compare) is now the allowlist for all three sweep paths — claim, requeue, reap. An allowlist rather than a denylist so the next self-driven tier is safe by default instead of exposed until someone remembers the file. `tier='session'` had exactly the same exposure and is covered too. A unit test asserts microvm and session are NOT in it, next to the code that inserts them. Two more fixes from the same wreckage: - `destroy` reported `killed: pgid.is_some()` — true whenever there was a pgid to signal, whether or not anything died. It now sends the signal, polls /proc for the group leader, retries, and reports what it OBSERVED; `signalled` keeps the old meaning so "nothing to kill" is distinguishable from "it would not die". - the run-status update is now guarded with `AND status <> 'cancelled'`. An operator cancelling is a decision; this task reporting an outcome minutes later is an observation, and it must not overwrite one with the other. And the root cause of the collect timeout itself: `mission_fs::pack_dir` shipped `target/` in both directions. `mission_delivery` has excluded build output from the DIFF since day one; the TRANSPORT never knew. The host checkout was 9.4 MB of which 8.9 MB was `target/`, tarred and base64'd over vsock each way. `EXCLUDED_PATHS` is now one list shared by both layers, matched on directory name at any depth so a workspace's per-crate `target/` dirs are all covered. 483 tests pass, clippy clean. |
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Omar Sobh
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0d25a94a84 |
fix(missions): agent teams do not form in print mode — say so where it is set
MEASURED, against the CLI in our own image (2.1.223): with
CLAUDE_CODE_EXPERIMENTAL_AGENT_TEAMS=1 and an explicit request to "spawn two
teammates", `claude -p` did the work with two SUBAGENTS, wrote both files, and
created no ~/.claude/teams/ directory at all. The docs allow for it — "Claude may
sometimes use subagents instead of creating a team" — and headless appears to be
always: the whole feature is described around an interactive agent panel, which a
print-mode session does not have.
So Slice 3's switch, as written yesterday, set a flag with no mechanism behind it.
The first team mission caught it, because the probe was built to look for teammates
rather than to assume them.
Corrected rather than removed:
- `team_env` documents the measurement at the point the flag is set, so the next
reader does not have to rediscover it. The flag stays: harmless, and free if a
later version supports teams non-interactively.
- the prompt addendum now asks for parallel DELEGATION rather than naming
teammates, which is what print mode can actually deliver — and it keeps the two
anti-patterns worth stating (own different files; do not split one change into
stages).
- the "no teammates" warning was blaming the flag and the config path. It now
judges on the SUBAGENT count, which is the mechanism in play, and a zero
teammate count is documented as expected rather than as a fault.
What the switch buys today is real but smaller than the plan assumed: it changes
the prompt so the lead parallelises across files instead of working through them
alone. Whether that beats solo on our own missions is still unmeasured, and the
plan's prediction — that it will not be faster — stands untested.
482 tests pass, clippy clean.
UNEXPLAINED, filed as #54: that team run's `topology_runs` row is `failed` while
the log line that sits immediately before the UPDATE never printed — zero matches
for 'microvm phase' in the container's whole log. The prime suspect is
`topology_worker`'s stuck-run reaper, which fails runs that are `running` with no
step records and does not filter by tier; a microvm run has no step records by
design. If that is it, any sufficiently long VM phase is failed out from under
itself. The system failed safely here — the empty-delivery guard caught that
nothing was produced, and nothing false was reported — but the cause is not known
and it is not being written up as if it were.
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Omar Sobh
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cb48f7ff3b |
feat(missions): Slice 3 — agent teams behind a per-mission switch, solo by default
`missions.team_engine` (0069): NULL = solo, `'claude_code'` = Claude Code agent teams inside the mission's VM. Solo stays the default deliberately — Anthropic measure multi-agent at 3-10x the tokens with wall-clock often LONGER, since the benefit is thoroughness rather than speed — so a mission that said nothing does not get a team. In-process teammates live in the lead's process, so ONE VM hosts the whole team. That is why this is a prompt-and-env change rather than an orchestration one: no N-VM fan-out, no placement per teammate, no new completion path. The lead decides its own team size and there is no flag that limits it, so the cap (4) is stated in the prompt. The addendum also carries the two anti-patterns from Anthropic's guidance, because they are exactly the shapes our pipeline templates have: teammates must own DIFFERENT FILES (two in one file overwrite each other), and one change must not be split into stages across teammates (a handoff loses context at every step). And: wait for your teammates — a summary written before they report is the lead's own guess. A solo mission's prompt and env are byte-identical to before this change. That is enforced by test, not by intention: the comparison between solo and team is only meaningful if the solo side did not also move. Evidence, because a team mission that forms no team is silently just a solo run that looked fine and spent fewer tokens: a second probe counts members in `~/.claude/teams/*/config.json` (minus the lead), reported separately from the subagent count, and a team mission with zero teammates logs loudly with the two likely causes. The teammate path is DOCUMENTED BUT NOT YET VERIFIED in our image, unlike the subagent transcript path which was measured — so a zero there means "no evidence found", and the first real team mission is what turns it into a fact. `Option<u32>`: None means no team was asked for or the probe could not run. Hooks (`TaskCompleted` / `TeammateIdle` exit 2, which would move `done_when` from post-hoc into the agent's own loop) are the highest-value part of this slice and are deliberately NOT here — they deserve their own pass rather than a rushed tail. 482 tests pass, clippy clean. |
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Omar Sobh
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11b274edc6 |
chore(images): Claude Code 2.1.223, and make the verifier foreground
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.
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Omar Sobh
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2dee941080 |
feat(missions): Slice 1 — a microVM agent can delegate, and we can see that it did
`microvm_executor` passed `--allowedTools Read Edit Write Bash`, which omits the
`Agent` tool, so Claude Code could not spawn a single subagent in any of our VMs.
The tool existed, the model knew how to use it, and the allowlist quietly removed
the ability. Nothing in any output said so.
Now: `Agent` in the allowlist, two roles supplied as `--agents` JSON, and a probe
that counts what actually ran.
Roles are JSON on the command line, not files, because `/mission/repo` is
collected and diffed — a role definition written into the checkout would arrive in
the delivered patch as if the agent had authored it.
Two roles only, and the choice is the research talking:
- `verifier` — the one multi-agent pattern Anthropic endorses for coding work.
It gets Read/Grep/Glob/Bash and deliberately NOT Edit or Write: an agent that
can fix what it is checking will fix it and report success, and the report is
then about a tree nobody reviewed. Its prompt demands the COMPLETE suite,
which is the counter to the "early victory problem" — the same failure as our
own Goodhart incident.
- `explorer` — context protection, read-only.
Roles like "tester" or "committer" are absent on purpose: splitting sequential
phases of the same work is a named anti-pattern, and it is the shape our pipeline
templates already have.
THREE THINGS THE IMAGE CORRECTED, none of which review would have caught:
1. `CLAUDE_AGENT_SDK_DISABLE_BUILTIN_AGENTS=1` (in the plan) removes EVERY agent
type, including the ones `--agents` defines. Measured: the lead reported "an
empty available-agents list" after trying four role names and — to its credit —
refused to fabricate a subagent result. Worse, the unit test asserting
"builtins off is paired with our own roles" PASSED throughout, because the
pairing holds in our code and not in the CLI. Dropped, and the test rewritten
to assert only what a unit test can speak to.
2. `--forward-subagent-text` refuses to run without `--output-format=stream-json`,
which would change how this module reads output. Dropped.
3. `--append-subagent-system-prompt` does not exist in 2.1.220 despite being
documented. The anti-shortcut rule is inlined per role instead — better anyway,
since a verifier and an explorer need different wording.
Evidence instead of assumption: Claude Code writes a per-subagent transcript at
`<session>/subagents/agent-*.jsonl`, so the guest is asked to count them before
collection (they live in /root, outside the collected tree). `VmOutcome.subagents`
is `Option<u32>` and the phase log prints it: `None`/"?" means the probe could not
run, which is a different fact from "delegated to nobody" and only one of those is
about the agent.
Verified in a container against the real CLI on tank before any of this shipped:
`FANOUT-OK`, a subagent transcript on disk, and zero errored Agent calls.
469 tests pass, clippy clean.
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Omar SobhandClaude Opus 5
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4f07430e92 |
feat(missions): B4.5 — phase_runner runs a microvm mission in a VM
`runtime_kind='microvm'` placed a mission on a KVM-capable node and then nothing
executed it: config accepted without a reader, one of the four seams this project
keeps closing. This is the reader.
`microvm_executor` — inject → run → collect → destroy, the shape copy mode
already proved for containers with a VM boundary instead of a namespace one. The
checkout goes in as a tar, the work comes back as a tar over the SAME host path,
so `mission_delivery::capture_phase_diff_at` needs no change at all.
The agent is told NOT to push, unlike the container path's session prompt. Two
reasons: delivery is already host-side and diffs the collected tree against the
recorded clone point (covering committed, staged and unstaged work in one pass),
so pushing would add a second untested way for work to arrive; and pushing would
mean forge credentials inside the VM, when the point of collecting is that the
guest never holds them.
Exactly ONE topology_runs row (tier='microvm'), mirroring launch_direct_session:
close_finished_phases, evaluation, capture and delivery all key off those rows,
and a second completion path would be a second way for a phase to finish with one
of them untested. The row and the phase flip happen BEFORE any fallible VM work,
so a missing token or a node that lost its capability shows up as a failed run an
operator can see — not a phase that stays pending and retries every ten seconds.
Fail-closed points, each the reader for a guarantee built earlier:
- credentials resolve BEFORE the VM boots, so a missing subscription token
fails the phase instead of booting a VM whose agent sits unauthenticated
- a VM reporting egress:false is REFUSED, which is what makes create's
egress/egress_host/egress_guest fields more than decoration — a turn without
egress does not fail, it hangs
- the injected checkout is PROVEN present in the guest before an agent turn is
spent on it; an inject that reports success while landing nothing would
otherwise become an agent reporting an empty repository
- work is collected even when the agent exits non-zero — a turn that failed
partway still wrote files, and a retry needs to see them
- a turn that ran but could not be collected is a FAILED phase, not a happy one
- destroy runs on every exit path, or an 8 GB sparse rootfs leaks
Two integration gaps found while wiring, both of which would have produced a
mission that completed having delivered nothing:
- `capture_finished_coding_phases` pulls work out of a CONTAINER before
capturing. A microvm mission has none, so the docker connect would fail, the
loop would `continue`, and capture would be skipped forever while the phase
sat marked completed. Its work is already collected by the executor.
- `launch_phase` provisioned a runtime container, copied the checkout into it
and wrote a runtime binding + pairing code describing a runtime nothing uses;
and the orchestrator's workspace pin — deliberately FATAL — would have failed
a microVM launch on a container it was never going to use.
461 tests pass, clippy clean.
NOT YET PROVEN END TO END: no mission has run through this path. The pieces under
it are each verified on tank (image, credentials, egress, a real agent turn), but
this executor has only been compiled and unit-tested. Deploy + one real microvm
mission is the remaining step.
Co-Authored-By: Claude Opus 5 <[email protected]>
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