diagit

AI Cost Tracking

• 🤖 LLM usage: $0.4500 (3 commits)
• 👤 Human dev: ~$100 (1.0h @ $100/h, 30min dedup)

Generated on 2026-08-08 using openrouter/qwen/qwen3-coder-next

diagit is a read-only-by-default auditor for a fleet of Git repositories laid out as ROOT/owner/repository, for example /home/tom/github/*/*.

It records immutable protobuf events, builds a disposable SQLite CQRS read model, and exposes a small allowlisted diagit:// process URI catalog. It never fetches, checks out, commits, pushes, or repairs a repository during an audit. Separate control plans require a digest-bound authority grant and independent read-back validation.

Install and run

python -m pip install -e '.[test]'
diagit audit --root ~/github
diagit audit --root ~/github --organization subactor \
  --repository 'subactor/*-agent' --exclude-repository 'subactor/*-worktree'
diagit query summary
diagit query findings --severity SEVERITY_CRITICAL
diagit query repo subactor/core
diagit diagnostics list
diagit diagnostics show DIRTY_WORKTREE
diagit uri 'diagit://fleet/query/summary'
diagit remote audit --organization subactor
diagit remote summary --organization subactor
diagit plan governance --organization subactor --output governance.json
diagit plan repairs --organization subactor --output-dir repair-plans
diagit plan fleet-repairs --organization subactor \
  --repository 'subactor/*-agent' \
  --exclude-repository 'subactor/*-worktree' \
  --code OPENROUTER_APP_IDENTITY_MISSING --output-dir openrouter-repairs
diagit plan governance --organization legacy-org \
  --rename-default-to-main --archive-unmerged --output governance.json
diagit onedev status \
  --onedev-password-file /path/to/onedev-admin-password
diagit forge audit --max-items 1000
diagit forge recommend --require actions --require projects \
  --visibility private --prefer-self-managed

The default state directory is $XDG_STATE_HOME/diagit, or ~/.local/state/diagit. Override it with --state-dir or DIAGIT_STATE_DIR.

Operator service

Running diagit without a subcommand starts the operator service. From ~/github it discovers every organization that contains Git worktrees. From ~/github/<organization> or any repository below it, it limits the initial scope to that organization. The initial local audit starts immediately and reports progress for every completed repository.

In a terminal, the service remains active and accepts single-key shortcuts without Enter:

a  repeat the local audit
r  audit selected GitHub organizations and compile repair planfiles
d  explicitly approve and delegate the prepared plans to OneDev
s  select one organization or the complete detected scope
q  exit cleanly

Delegation requires an additional y confirmation. Diagit then creates a mode-0600, ten-minute authority grant for each exact plan digest and submits only CONTROL_ACTION_SUBMIT_REPAIR; Doctor/Repair/Validator evidence remains mandatory. When stdin is not a TTY, the same bare invocation performs one bounded local audit, prints progress, and exits instead of waiting for input.

Diagnostic registry

Every finding keeps its concise compatibility code, such as DIRTY_WORKTREE, and is enriched from the packaged diagit.diagnostic-registry/v2 catalog with a stable identifier such as DIAGIT-GIT-003, category, severity, error class, retryability, and an optional repair URI. The registry is the source of truth: emitting an unknown code or a severity/message that differs from its definition fails closed.

The four severities have consistent operational meaning: INFO records useful state, WARNING requires planned attention, ERROR blocks the requested invariant, and CRITICAL means the audit or control boundary itself is not trustworthy or available.

Remote pull requests are classified independently of the generic OPEN_PULL_REQUEST finding. The registry distinguishes green mergeable PRs, failed, pending or missing checks, merge conflicts, unknown mergeability, and drafts stale for at least 30 days. A green unmerged PR is always emitted as PR_GREEN_REQUIRES_MERGE and cannot be archived by the governance cleanup policy.

Architecture

• Commands change only the auditor's own state. AuditFleet observes Git repositories and appends AuditRunStarted, RepositoryAudited, and AuditRunCompleted protobuf events.
• The length-delimited events.pb file is the canonical event store.
• Queries read a rebuildable SQLite projection (projection.sqlite3).
• Forge account observations from GitHub, GitLab, Gitea/Forgejo, and Bitbucket are stored as ForgeAccountTwinObserved protobuf events. Their read model ranks providers from visible scopes, repositories, capabilities, visibility, completeness, and self-managed preference; it never reads repository content. The canonical contract and reviewed decision baseline are pinned to uri-twin/uri-twin-forge; Diagit returns that source revision with each audit and recommendation.
• diagit rebuild recreates the projection solely from stored events.
• URI processes are explicit adapters to the same command/query handlers; an arbitrary URI can never become a shell command.

Supported URI processes:

diagit://fleet/audit?root=/home/tom/github
diagit://fleet/query/summary
diagit://fleet/query/findings?severity=SEVERITY_WARNING&limit=100
diagit://repository/<owner>/<repo>/query/report
diagit://projection/rebuild
diagit://github/<organization>/audit
diagit://github/<organization>/query/summary
diagit://forge/audit?providers=github,gitlab,gitea,bitbucket&max_items=1000
diagit://forge/query/recommend?requires=actions,projects&visibility=private&prefer_self_managed=true

Governed control plans

Remote audit observations can be compiled into the versioned diagit.control-plan/v1 JSON DSL. Every executable plan embeds a subactor.process-envelope.v2 with all four governed definitions: AQL authority, transport-independent OQL operations, exact URI processes, and EQL expectations. A governance plan closes an open pull request or deletes an extra branch only when the branch head is already contained in main. By default, unmerged branches remain blockers. The explicit --archive-unmerged policy first creates and independently validates a deterministic diagit/archive/<branch>-<sha> tag, then permits branch deletion and PR closure through dependent URI steps. --rename-default-to-main safely migrates a default branch only when main does not already exist and the observed head SHA still matches.

Applying a plan requires a separate mode-0600 diagit.authority-grant/v1 file. The grant must name the organization and allowed action kinds, bind the exact plan SHA-256 digest, identify its approver, and have a future expiry. Execution is explicit:

diagit apply governance.json \
  --authority-file authority.json \
  --confirm-apply

An archived branch can be restored through a separately authorized plan:

diagit plan restore --repository owner/repository --branch fix/recover \
  --tag diagit/archive/fix/recover-0123456789ab \
  --expected-head 0123456789abcdef0123456789abcdef01234567 \
  --output restore.json

For code repair, generate a single OneDev handoff action. The instruction is data, never a command:

diagit plan repair \
  --repository subactor/core \
  --task-id 0004_node-domain-tickets \
  --instruction-file repair-instruction.txt \
  --output repair.json

Before applying an action, Diagit fails closed unless its AQL actor explicitly allows the matching OQL operation and the action is bound to exactly one URI step. After an authorized apply, Diagit sends the complete envelope, canonical plan digest, grant ID, and approving principal to the existing OneDev Agent /tasks/execute boundary. OneDev independently repeats the AQL/OQL/URI/EQL checks before materializing a Planfile ticket. OneDev then owns Doctor → Repair → Validator, test gates, exact-SHA checks, and publication. A submission receipt remains submitted; only validator evidence can satisfy the terminal EQL. The referenced diagit-repair-delegation.pl.aql decision model is packaged with the wheel, so the envelope never relies on an unresolved model name.

diagit plan repairs compiles the latest remote audit into one independently authorizable plan per affected repository plus a diagit.repair-plan-set/v1 manifest. It selects only diagnostics whose registered repair URI delegates to OneDev, deduplicates them into a bounded instruction, and preserves the source audit run ID. --code can be repeated to restrict generation to specific delegable diagnostic codes. Generating the set never submits work; each plan still requires its own digest-bound authority grant before diagit apply can cross the OneDev boundary.

diagit audit accepts repeatable exact or glob repository selectors. The fleet-repairs variant compiles local findings from the latest completed audit, so one diagnostic becomes an independently authorized OneDev ticket for each selected repository rather than one unbounded fleet mutation.

OpenRouter application attribution

DIAGIT-LLM-001 / OPENROUTER_APP_IDENTITY_MISSING identifies tracked runtime consumers of OpenRouter that do not provide verifiable cost attribution. A compliant repair declares OPENROUTER_APP_NAME and OPENROUTER_APP_URL in the environment template and binds them to X-OpenRouter-Title and HTTP-Referer. When the name is blank, runtime code must use the repository directory name. Diagit reads only variable names and bounded tracked source files; finding evidence never contains environment values or API keys.

The audit uses only local Git metadata. Ahead/behind values therefore describe the locally known upstream refs and do not imply a network refresh.

Release readiness

diagit audit --root ~/github --organization subactor --check-registries adds bounded release checks to the normal event-sourced fleet audit. Local checks validate goal.yaml, package file boundaries, and version tags. Registry checks compare public package.json and pyproject.toml manifests with npm and PyPI; Node packages with private: true are never treated as publication candidates.

The command is read-only: it reports unpublished packages and version drift but never publishes, tags, or pushes. Registry access is opt-in because it requires network I/O.

Development

python -m grpc_tools.protoc -Iproto --python_out=src --pyi_out=src proto/diagit/v1/audit.proto
scripts/verify

The package distribution name is diagit, its Python import is diagit, and its executable is diagit (which also permits the Git external-command form git diagit).

License

Licensed under Apache-2.0.