b934c46714c1169f1c1d67ca2095293bc3ea846e
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b934c46714 |
Enforce the tool-call contract, asking servers only where it works
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The executor ended a milestone on any reply without a tool call, and
nothing held a model to the offered tools. Measured on the 4070:
tool_choice "required" is enforced by vLLM (local-fast) and Anthropic,
but qwen3-14b (local-coder) under it cannot stop and writes until the
output ceiling, a known model bug. So enforcement is asked for per
model, and the loop holds the contract itself everywhere.
- The catalog reads supports_tool_choice from LiteLLM's model_info;
BudgetedClient sends tool_choice only to models declared true, as
"required" on the normalized route and {"type": "any"} on the
Anthropic passthrough, and only when tools are offered
- The executor gains an explicit finish tool, the only way to end a
milestone. Finishing with nothing changed is refused once; a prose
reply gets one nudge, then escalates; a call to a tool not offered
counts toward failure_limit, like a failed command; calls after
finish are recorded as not run
- Clients record the model that actually answered. ModelFacts.answered
recognises a proxy fallback, which once credited Claude's answers to
a local model that could not call tools at all
- The context probe reports a fallback instead of trusting it; rerun,
both local models now refuse over-long prompts, as they should
- The capability matrix checks every answer came from the model asked,
that models call only offered tools, and that a declared
supports_tool_choice is true
- Spec A15 and the tuning guide say how enforcement is requested,
declared and backed up
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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494715efa9 |
Fit every model request to its context window
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Every turn re-sent the whole transcript with nothing checking it against the model's window. On a local model that fails silently: Ollama drops the start of an over-long prompt, which is where the system prompt and the plan are. Measured on the Jetson's llama3.2, cut at 4096 tokens with no error. - The model catalog reads max_input_tokens and max_output_tokens from LiteLLM's model_info, and startup refuses a role on a model with no declared window - BudgetedClient wraps both routes. It fits the canonical events before rendering: older tool results cut to head and tail, then the oldest turns dropped with a note, keeping calls with their results; a request that still cannot fit fails with ContextOverflow and is never sent. The output ceiling is the smaller of config and the model's limit - Tokens are estimated from characters, pessimistically, and the estimate is corrected from reported prompt sizes, only ever upward - The executor takes its scope from the log: the latest plan, which is the approved milestone plan, goes in its system prompt, and it sees only events after it - Tool output keeps its head and, mostly, its tail, so a test runner's failure summary survives truncation - tuning.context.keep_recent_turns and safety_margin are new knobs - scripts/probe_context.py checks a declared window against what the server does; it confirmed llama3.2 cuts at the declared 4096 - The tuning guide covers the budget, declaring a local model's limits, and the probe Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> |
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abb7fa0216 |
Add the operator kill switch, stop (A4)
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`stop` could not have worked by adding the command alone. Planning turns, milestones and review responses ran synchronously on the thread that delivered the message, so the Matrix sync loop read nothing until the work finished. The state store was also opened on the main thread and used from the transport and poller threads, which SQLite refuses with its default same-thread check; the in-memory test transport never showed it. A single worker thread now runs every handler and owns the store: - The worker opens the store, so the same-thread check stays on and fails loudly if anything touches the store from elsewhere - Matrix messages are handed to the worker; pollers hand over and wait, so their cursor never passes an unhandled comment - A message that arrives during long work gets an immediate "busy; say 'stop' to halt" reply and is recorded, not applied later in a state the operator was not answering - Tests keep running inline through InlineWorker, which defers a job submitted from inside another as the real worker would queue it `stop` sets a shared Cancel flag straight from the transport's thread. The executor and delegation loops check it before each model call and between tool calls; the planner checks it before each turn. Calls left unrun get a result saying so, so the transcript still renders. A stopped delegation is discarded like a failed one. The orchestrator moves to AWAIT_INPUT and asks why the work was stopped. The reply is recorded for the model, and a stopped planning turn resumes with it as the answer. `stop` with nothing running says so and changes nothing; at a gate it is no longer taken as rejection feedback. Closes #40 Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> |
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2fb25b8195 |
Add the composition root and a runnable entry point
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Nothing had ever assembled the agent. main.py was still the hello-world placeholder from the scaffold, and no code outside the test suite constructed an Orchestrator — which is how two fully built, fully tested components came to be reachable from nothing: the delegation harness, and the Gitea comment poller. Unit tests that construct a component directly cannot catch that; only assembly can. - config.py validates every variable before anything is built and names all of them at once, rather than failing at first use twenty minutes into a milestone on the call that mattered. Whitespace-only counts as missing, since a token of spaces passes a truthiness check and fails at the first request instead - agent.py builds the whole graph and owns startup and shutdown order: reconcile before accepting commands, and on stop, stop watching, then stop talking, then close the store last - The Gitea account is read via whoami rather than configured: it names the identity every permission is evaluated against, and proves the token works before anything depends on it - Poller lifecycle is now a state-machine concern: watch the plan issue while a gate stands, the PR while it is open, and stop on leaving. The orchestrator owns when to watch; an injected factory owns how to build one - The executor reports each turn, because it runs synchronously inside the transport callback: without it the agent is silent for a whole milestone and a working run looks exactly like a hung one - main.py loads .env, builds, and shuts down cleanly on SIGINT/SIGTERM The entry-point tests changed shape: nisse-dev no longer greets, it refuses to start unconfigured and says everything that is missing. Both tests now run with a deliberately empty environment and a .env path that does not exist, because the working directory's .env holds live credentials and a test must never be one cwd away from starting a real agent. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> |
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ce436262f4 |
Wire delegation to A12's trigger, and implement A3's resume rule
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Two gaps found by auditing spec against code, the second created by 7b landing the harness without its boot-time half. **The harness was not connected to anything.** Only a live test constructed a Delegation; A12's failure-count trigger still gated to the human, which A13 describes as the fallback rather than the path. Consecutive command failures now hand the sub-task to the delegate, with the failures in the brief so it need not rediscover what the local model learned the hard way. A usable handback lets the local loop carry on; anything else escalates, because a cap breach leaves a half-edited tree. **A3 step 5 was unimplemented.** A crash mid-delegation failed safe — boot gated on "restarted mid-EXECUTING" — but always gated, even on the clean cut the spec says should resume, and left the branch orphaned because _abandon only runs while the process lives. - A delegation now records an intent before the branch exists, and settles it whichever way the delegation ends; an aborted delegation is a finished one, and leaving it pending would make the next boot believe work was still in flight - delegation_verdict implements the clean-cut test as an observable check, never model self-assessment: settled if a completion follows the start, absent if the branch was never created, gate on a tool_call with no recorded result, resume otherwise - recover() sweeps at boot, announcing a resume with a notice rather than a question, since a clean cut needs no decision from the operator, and leaving an unclean one pending so the generic sweep gates on it - resume() continues the same delegation rather than starting a second: no new branch, no second delegation_started, because A10 defines a session as the delegation, not the process lifetime Honest limit, stated in the code: "the branch sits at the expected commit" is approximated by the branch existing and carrying the work, since per-turn shas are not recorded in the log, so a branch rewritten underneath us would go undetected. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> |
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2b7651fb37 |
Add ask_expert and eval capture (A14/A16) — step 7c
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Completes step 7. - expert.py: one stateless call for a question needing no repo access. Structured output is contracted at the prompt level, since vendors differ on JSON enforcement, so the reply is parsed and validated locally with one retry — tolerating a fenced code block, because models wrap JSON habitually, but not missing fields - The per-task budget is counted from the canonical log rather than memory, so it survives a restart and cannot hand a circling executor a fresh allowance. Exhaustion raises rather than answering: a caller out of consults should get on with the work or escalate - Consults are recorded as delegation_started/completed with role consultant. A16 asks for a "consult/delegation eval set", and reusing the composite events gets consult evaluation for free rather than inventing a parallel record - evals.py pairs starts with completions into eval records, with verdicts kept outside the canonical log: the log records what happened, a verdict is a later judgement about it, and judgements get revised. Schema v3 adds the outcomes table, so a v1 store now traverses two migrations — a better exercise of the hook than one - ask_expert is offered to the executor as a tool only when a desk is configured, in addition to the observable escalation triggers and never instead of them (A12). Consulting is not mutating, so a completion claim backed only by consults is still challenged Found live: passing an empty message list and putting the question in the system prompt fails outright — the Messages API requires at least one non-system message. The question now travels as a synthesised user message that is never appended to the log, which keeps the consult stateless while remaining a valid request. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> |
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53ed11f9c4 |
Add the delegation harness (A13) — step 7b
A frontier model receives a scoped sub-task, works autonomously with full tool access, and hands back; the local loop reads the handback note and the file state, never the reasoning. - Branch at delegation start, and abort discards it. That required committing each turn's work onto the branch: without commits, deleting a branch discards nothing, so "abort discards the work" was a comforting phrase rather than a fact. The caller's own in-flight changes are committed to their branch first, so an abort cannot destroy work nobody delegated - Hard caps on turns and wall clock; a breach is a defined failure return, and its result is not usable, so the caller gates rather than resuming on a half-edited tree - Every event is checkpointed as it arrives, so a crash mid-delegation leaves the branch at a known commit and a truthful transcript - Handback is validated locally: blank fields or a non-boolean success flag are refused and the delegation continues rather than accepting a useless note Two failure modes found by running it against a real model: - A success claim with nothing changed was accepted. The handback plus file state is the entire interface back, so a note describing work that does not exist is worse than no note. Success now requires a successful mutating tool call; reporting failure still does not, since "this is impossible" is a legitimate finding - The delegate invented the absolute path /workspace, wrote there, ran its tests there, and handed back truthfully — with the repo empty and git seeing nothing. Writes outside the workspace are now refused with a message naming the real root, and both prompts state where the workspace is instead of leaving the model to guess. This is not sandboxing: work outside the repo is invisible to git, so the milestone would publish an empty PR Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> |
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886cb80583 |
Count only mutating tools as evidence of work
The previous fix challenged a completion claim made before any tool call, but treated every tool as work — so a model that ran one list_dir and then declared the milestone done was believed, and CI caught the same empty milestone again. Reading a file or listing a directory is the model orienting itself. Only write_file and run_command now count, so a completion claim must be backed by something that changed or verified the tree. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> |
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acee8b96f0 |
Do not believe a completion claim before any work was done
CI caught the executor recording an empty milestone as a success: the model answered with prose on its first turn, and the loop reads "no tool call" as "the plan is done". It had therefore finished a milestone having touched nothing, and the milestone would have gone on to publish with no changes. A completion claim is now challenged once when no tool has been called yet — the same shape as the planner's nudge — and a model that persists escalates instead of reporting success. After the first tool call the claim is taken at face value, as before. The live milestone test failed roughly one run in five on this; four consecutive runs pass now. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> |
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0fd0b2e4a5 |
Add executor tool loop (A12/A15) — step 5b
- tools.py: four flat tools (read_file, write_file, list_dir, run_command) per A15's reduced manifest. Deliberately unsandboxed: the VM is the trust boundary (B3) and tool use is auto-approved inside an approved unit of work (A4), so path confinement would add failure modes without adding safety. What is enforced is operational — timeout with process-group kill so a backgrounded server cannot outlive its command, output truncation so a build log cannot eat the context window, closed stdin so prompts fail fast, and a scrubbed environment so project code never sees the agent's credentials - executor.py: renders the log, calls the executor role with the reduced manifest, dispatches tool calls, and checkpoints every result (A13). Escalation is observable, never self-assessed (A12): consecutive command failures and a hard turn cap. Failed reads do not count — looking around is not failing - Until delegation exists (step 7), escalation gates to the human with the failures attached - control.py: start milestone now runs the executor; a stopped milestone gates to AWAIT_INPUT Two bugs found by running it live against real models: - A turn-ending gate tool (submit_plan) left a tool_call with no tool_result, which providers reject outright, so every planning turn after the first failed with a 400. The planner now records the gate as the call's outcome, which is also the truthful transcript - The renderer now emits a placeholder for any tool_call lacking a result, so a crash between call and result (A3) cannot poison the transcript permanently Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> |