rag-reviewer
AI-assisted pull-request reviews grounded in whole-repository context: hybrid search, a code graph, and inline comments anchored to changed lines.
Requires Python 3.11–3.13 and external Voyage, PostgreSQL/ParadeDB, and Neo4j services. Publishing reviews also requires credentials for the selected version-control provider.
Start here
Choose the shortest route for what you need now. Both routes lead to the same workflows and reference sections later in this document.
| If you want to… | Follow |
|---|---|
| Try reviewer and get a first result | Try reviewer |
| Use reviewer with a team on one shared host | Deploy for a team |
Try reviewer
You need Python 3.11–3.13, uv, Docker, a Voyage API key, and a version-control system (VCS) token if reviewer should read or publish pull-request reviews. The stores run locally; embedding and reranking requests go to Voyage.
-
Install the launcher, download the repository's Compose file into reviewer's config directory, start the stores, and configure reviewer:
uv tool install rag-reviewer mkdir -p ~/.config/rag-reviewer curl -o ~/.config/rag-reviewer/docker-compose.yml \ https://raw.githubusercontent.com/mimfort/rag_for_git/main/docker-compose.yml docker compose -f ~/.config/rag-reviewer/docker-compose.yml up -d reviewer init
The Compose file lives next to the env file in
$XDG_CONFIG_HOME/rag-reviewer/(~/.config/rag-reviewer/by default), so one store stack serves every repository and the Compose project name stays the same no matter which repository you are standing in. Plaincurl -Owrites into the current directory instead; inside a clone of this repository it overwrites the trackeddocker-compose.yml. -
See the supported AI clients and connect one:
reviewer install --list reviewer install codex
-
Build the branch-scoped searchable snapshot called the base index, then check the environment and inspect index freshness:
reviewer index /path/to/repo --ref main reviewer check reviewer status /path/to/repo --branch main --json
Indexing initializes the
chunksschema thatreviewer checkqueries, so a fresh installation must index before checking. The check validates every configured VCS provider; its successful identity check does not prove repository-specific permissions. The status payload should show an indexed SHA anddrift == 0. Full indexing sends code chunks to Voyage and can be slow on its free tier. Without a base index, PR review has only the diff and its temporary changed-file index (overlay), and therefore thinner repository context. -
Open a new client session and run the first review:
# Claude Code /rag-reviewer:review-pr owner/repo#123 --dry-run # Codex $rag-reviewer:review-pr owner/repo#123
Invocation syntax differs by client. A dry run returns grounded findings without publishing; a normal run publishes through
publish_reviewand therefore requires VCS write credentials.
For a temporary launcher without a persistent tool installation:
uvx --from rag-reviewer@latest reviewer
Deploy for a team
This route assumes that team members open their AI-client sessions on one shared host under one
service account. Each client launches its own reviewer-mcp stdio process; those processes share
PostgreSQL/ParadeDB and Neo4j through the Compose services bound to 127.0.0.1, plus the service
account's reviewer env. It is not one central MCP daemon. MCP requests carry repository, branch,
project, and provider_options, and tool results return selected code context to the AI client.
For separate workstations, use secured network-accessible stores and configure their DSNs and
reviewer env on every workstation instead of using the loopback Compose defaults.
-
On the shared host, start the stores and configure secrets for the service account.
mkdir -p ~/.config/rag-reviewer curl -o ~/.config/rag-reviewer/docker-compose.yml \ https://raw.githubusercontent.com/mimfort/rag_for_git/main/docker-compose.yml docker compose -f ~/.config/rag-reviewer/docker-compose.yml up -d reviewer init
-
Choose repository and branch scope. Set
DEFAULT_REPOas the fallback repo, and either the orderedREVIEW_BRANCHESCSV allowlist in server env or (preferred) a per-repo home layer — see Repositories and branches. Put repository-specific policy, ignored paths, context limits, and non-secret board metadata in.review.yml. -
Build and verify every tracked branch.
reviewer index /srv/rag_for_git --ref main --repo mimfort/rag_for_git reviewer check reviewer status /srv/rag_for_git --branch main --json
-
Connect team clients.
reviewer install --all reviewer install codex --dry-run
Run installation on the shared host as the same service account.
--allconfigures the supported clients for that account;--dry-runreports planned config writes. Open a new chat or CLI session afterwards; IDE integrations may also require Reload Window. -
Add optional board context. Select a registered provider in
.review.yml, keep its credentials in the reviewer env, and validate the exact project:reviewer check --board-project TYPE=PROJECT
Repeat
--board-projectfor additional providers. See Task boards and the provider reference.
Core workflows
Reviewer workflows are delivered as namespaced skills. Each skill defines its own read/write boundaries and confirmation gates; the MCP server performs storage, graph, VCS, and board work.
Review a pull request
Use review-pr for bug finding. It prepares a PR session, retrieves code and graph
context, analyzes changed files, verifies candidate findings, and publishes only grounded results.
Use --dry-run first when validating a deployment. Inline comments can target only commentable
diff lines; off-diff findings go to the summary.
Solve a task
Use solve-task to turn a board task or free-text request into a persisted brief before
development. It checks index freshness, warms task context, gathers related work and code, then
hands the brief to brainstorming. It does not implement the task by itself.
Ask a grounded codebase question
Use ask for onboarding and codebase Q&A. Answers cite real path:line locations from
the base index and code graph. It reads and explains; it neither reviews a PR nor modifies code.
Walk a human reviewer through a PR
Use pr-walkthrough for a reading guide: where to start, what each file changes, and
which callers are affected. It is intentionally separate from bug review.
Run a focused review
Use performance-review for repeated I/O, N+1 work, poor asymptotics, batching, caching,
and memory risks. Use maintainability-review for complexity, duplication, readability,
separation of concerns, and repository conventions. Both stay within the requested dimension.
Create, decompose, and finish board tasks
create-task drafts a canonical task body and writes only after confirmation.
decompose-task turns one stored parent into a fully previewed native-child batch, asks for one
confirmation, preserves the previewed idempotency key on retries, then re-syncs and verifies every
relationship and child read.
finish-task links the PR, moves the task to a discovered done target, adds a task link
to the PR body, and re-syncs the task corpus—also only after confirmation.
Reviewer grounding in plan/review phases (optional)
Reviewer grounding in plan/review phases lets planning and review phases reuse session-less reviewer tools when the base index is current.
Reviewer grounding (plan/review, optional, fail-open). Run
reviewer status /path/to/repo --branch main --jsonfirst. Whendrift == 0, prefersearch_codebasefor cross-file facts and usecallers,related_symbols,definition, orimplementationsonly for central symbols. The base index does not see uncommitted edits, so read changed files from disk. If reviewer or the index is unavailable, fall back to local search/read tools instead of blocking.
How it works
RAG means retrieval-augmented generation: the model receives code selected by hybrid semantic and lexical search instead of only the PR diff. The graph adds structural relationships.
PR → prepare_review → base + overlay retrieval → skill analysis
→ verify → policy gate → grounding → dedup → inline comments + summary → cleanup
- Base index. Persistent chunks live under
base:<branch>. PostgreSQL/ParadeDB combines pgvector approximate nearest-neighbor (ANN) search with BM25 lexical ranking; Voyage produces embeddings and reranks candidates. - Overlay. Changed PR files use an ephemeral
pr:Nref. Retrieval takes unchanged files from base and changed files from overlay. - Code graph. Neo4j nodes use
node_id = path#fqn, wherefqnis the fully qualified name. SCIP, an external type-aware code indexer, providesCALLSandIMPLEMENTS;autofalls back to tree-sitterCALLSwhen SCIP is unavailable. - Grounded publishing. Findings must quote real changed code. GitHub suggestions are emitted only when the replacement is safely applyable on the RIGHT side of the diff.
- Idempotency. Hidden fingerprints prevent reposting the same finding. Overlay/session cleanup runs after publication and fail-soft on errors.
For the module-level map and invariants, see CLAUDE.md.
Installation and configuration
Requirements
- Python
>=3.11,<3.14; - Docker for the default PostgreSQL/ParadeDB and Neo4j stack;
- Voyage API credentials for embeddings and reranking;
- VCS credentials for PR reads and publication;
- a supported AI client with the reviewer MCP integration.
Installation and updates
Persistent CLI:
uv tool install rag-reviewer
reviewer update
uv tool install takes the package name and installs both of its commands, reviewer and
reviewer-mcp. Its --from option only pins a different source for the same package
(--from rag-reviewer==0.4.3, --from git+…); --from PACKAGE COMMAND is uvx syntax and
uv tool install rejects it.
Temporary/latest invocation:
uvx --from rag-reviewer@latest reviewer --help
reviewer update checks before mutating a persistent uv tool installation. Use
reviewer install CLIENT --dry-run to inspect integration writes.
AI clients
Discover clients with reviewer install --list; install one client or every detected client:
reviewer install codex
reviewer install --all
reviewer install-skills codex
Codex-specific lifecycle:
uvx --from rag-reviewer@latest reviewer install codex
uvx --from rag-reviewer@latest reviewer install codex --dry-run
codex plugin list --json
codex mcp list
Claude Code global plugin lifecycle:
uvx --from rag-reviewer@latest reviewer install claude-code
claude plugin list --json
claude plugin marketplace list --json
After installation, start a new chat/CLI session; in an IDE, also use Reload Window.
Breaking skill-name migration
This release removes the redundant reviewer_ segment from every skill name. Legacy skill
invocations are unsupported: update the plugin/cache, use the short names listed below, then open
a New Chat or new CLI session. In an IDE, also use Reload Window.
Required services and credentials
Run reviewer init to write the selected env file and reviewer check to validate it. Resolution
order is REVIEWER_ENV_FILE → $XDG_CONFIG_HOME/rag-reviewer/.env → ./.env.
Important groups:
- Voyage:
VOYAGE_API_KEY; - stores:
PG_DSN,NEO4J_URI,NEO4J_USER,NEO4J_PASSWORD; - VCS: provider token plus optional API base;
- repository scope:
DEFAULT_REPO,REVIEW_BRANCHES(branch allowlist fallback; a per-repo home layer takes precedence — see Repositories and branches); - board credentials: provider-specific env declared in the registry.
Credentials stay server-side. Credentials are not returned by board metadata or discovery
tools and must not be placed in .review.yml.
Configuration ownership
| Location | Owner | Stores | Must not store |
|---|---|---|---|
global .env |
deployment/operator | secrets, credentials, DSNs, runtime infrastructure and compatibility fallbacks | repository policy |
| home global YAML | OS account running reviewer | shared non-secret defaults | credentials |
| home per-repo YAML | OS account running reviewer | repository.primary_branch, repository.index_branches, operator-owned repo policy |
credentials |
committed .review.yml |
repository team | team-visible review policy and non-secret task-board metadata | credentials or repository |
| git remote / CLI | repository/operator | canonical owner/name identity and explicit command overrides |
persisted secrets |
| Postgres / Neo4j | reviewer runtime | derived indexes, task/review state and code graph | source-of-truth configuration |
Single repository
Run reviewer init from the clone, inspect the global .env and home per-repo previews, then run
reviewer check and reviewer config show --repo owner/name.
Second repository
Run reviewer init --scope repo from the second clone. It creates or previews only that repository's
home per-repo YAML and does not rewrite global .env or the first repository's config.
CI / server
Inject secrets into global .env or the process from a secret manager. Use noninteractive init only
for deterministic preview/write, mount home YAML for the service account, and keep team-owned policy
in committed .review.yml. Pass --repo owner/name when no usable git remote is present.
VCS credentials
| Provider | Environment | Minimum access | Reviewer reads | Reviewer writes | reviewer check |
|---|---|---|---|---|---|
| GitHub | GITHUB_TOKEN |
fine-grained PAT: Pull requests: Read and write; Contents: Read | PR metadata, files, comments, contents, compare | review comments/summary and PR body backlink | authenticates /user identity |
| GitLab | GITLAB_URL, GITLAB_TOKEN |
PAT/project token with api scope |
MR metadata, changes, notes, repository files, compare | discussions/notes and MR description backlink | authenticates /api/v4/user identity |
The health check proves URL/token authentication, not every granular repository permission. The
selected repository permissions are exercised by an actual review. reviewer init shows the same
contract before prompting only for the selected provider's credentials.
Repositories and branches
DEFAULT_REPO identifies the fallback owner/name. Tracked branches for a repository are
resolved in layered order — the first source that defines them wins entirely (no per-branch
merge): a per-repo home file $XDG_CONFIG_HOME/rag-reviewer/repos/<owner>/<name>.yml →
the home-global review.yml → the env REVIEW_BRANCHES CSV allowlist → ["main"]. In every
source the first entry is primary unless primary_branch is set explicitly. Each branch has
isolated base:<branch> chunks and graph nodes. Run reviewer config show --repo owner/name
to see the effective branches and which layer produced them.
reviewer index /path/to/repo --ref main --repo owner/name
reviewer status /path/to/repo --branch main --json
reviewer search "token verification" --branch main
Use reviewer config migrate --repo owner/name to copy the env REVIEW_BRANCHES allowlist into
the per-repo home layer (no-op if a home layer already sets branches), or reviewer migrate-branches
once when upgrading a legacy unscoped base index.
Per-repo .review.yml
Per-repo policy overrides server defaults and is read from the target/base branch. Typical fields:
paths:
ignore:
- generated
summary_cluster_depth: 2
summary_topk_threshold: 20
context_limits:
search_codebase:
floor: 4
ceiling: 15
graph:
hops: 1
Layered repository policy
Policy is resolved in this exact order; each later source wins for the same top-level key:
ENV
< $XDG_CONFIG_HOME/rag-reviewer/review.yml
< committed .review.yml at the selected target ref
< $XDG_CONFIG_HOME/rag-reviewer/repos/<owner>/<name>.yml
When XDG_CONFIG_HOME is unset, the home root is ~/.config/rag-reviewer. Merging is only at the
top level: a later mapping, list, or null replaces the complete earlier value; nested mappings
are not deep-merged. That replacement is shadowing. Inspect the effective policy, source for
each key, and shadowed sources with:
reviewer config show --repo group/service --branch main --json
The committed layer is fetched at the selected ref, so review/config resolution never reads an
uncommitted worktree .review.yml. To copy a safe committed policy into the repo-specific home
layer without modifying the committed file, run:
reviewer config migrate --repo group/service --branch main
Migration is non-destructive: an equivalent destination is a no-op, while a differing destination
is reported as a conflict and left unchanged. Home files with credential-like keys are rejected as
policy layers and their values are never displayed; keep credentials in server environment instead.
Home configuration belongs to the OS account running reviewer. On a shared service account it can
silently affect that account's workloads, so use committed .review.yml for team-visible policy and
restrict the service account's home configuration permissions.
Use configure-review to update context fields without clobbering unrelated keys. It
recommends the per-repo home target first, or can explicitly update the committed .review.yml for
team-visible policy.
Task boards
Board selection is generic and registry-driven. Credentials come from server env; .review.yml
contains only non-secret metadata:
task_board:
type: <registered-provider>
project: PRI
key_pattern: "[A-Z]+-\\d+"
url_template: "https://tasks.example/{code}"
create_target: Backlog
done_target: Done
options:
<provider-option>: <discovered-value>
sync_filter:
max_age_days: 180
include_archived: false
The repo block wins; an explicit empty task_board: disables board work. If the block is absent,
the server may use a non-secret deploy-wide fallback. Calls use configured registry credentials
without returning them.
sync_filter is a generic sibling of provider options. By default max_age_days is absent (no
age limit) and include_archived: true. Age uses task last-modified time with an inclusive cutoff,
so a task exactly at the boundary remains eligible. An unknown age is not filtered by age. Only
while include_archived: false, unknown archive does not itself exclude the row and an archive
warning is emitted only then. Age filtering runs first and may still exclude the row; in that case
archive uncertainty is not counted or warned. Archive is separate from terminal/done state.
Repositories with the same task_board.project share one task corpus. Retention never deletes
implicitly: purge is explicit. A filter change backfills newly eligible tasks on the next successful
full sync.
The server-side flow is store-first:
sync_boardenumerates and normalizes tasks, then stores vectors and task-graph metadata undertasks:<type>:<board>.- Skills call
get_task(key, project=...); linked tasks/PRs/code come from task context tools. - Client models never enumerate the provider directly and never send credentials.
The MCP server currently exposes 38 tools, including the native-subtask batch operation.
Legacy aliases remain legacy metadata for older clients for one compatibility window:
TASK_BOARD_API_KEY → YOUGILE_API_KEY and
TASK_BOARD_API_BASE → YOUGILE_API_BASE. New deployments should use registry-declared
provider credentials. See docs/board-providers.md for the current
provider matrix, target discovery, options, setup, and credential rotation.
Observability and tuning
reviewer serve exposes review history and traces through the optional web extra. Summary depth,
top-k threshold, graph backend, and retrieval ceilings change cost/recall trade-offs; start with
defaults and tune only after observing real misses or excessive context.
CLI reference
| Goal | Commands |
|---|---|
| Configure and integrate | init, install, install-skills, update |
| Validate environment | check |
| Manage indexes | index, status, search, migrate-branches, gc |
| Run observability UI | serve |
| Start MCP directly | reviewer-mcp |
Use reviewer COMMAND --help for the current option set. status does not spend Voyage tokens;
search and indexing do.
Skills reference
The examples below use Claude-style /rag-reviewer:... invocation. Codex exposes the same
namespaced skills with $rag-reviewer:....
review-pr — full PR review
- When: find correctness, security, performance, and maintainability issues in a PR.
- Invoke:
/rag-reviewer:review-pr owner/repo#123 --dry-run. - Needs: reviewer MCP, VCS access, stores, and preferably a fresh base index/graph.
- Reads/writes: reads PR/code/task context; publishes through
publish_reviewunless dry-run. - Result: grounded inline comments plus a summary; deterministic publish handles dedup.
solve-task — task to development brief
- When: start implementation from a key such as
PRI-220or a free-text request. - Invoke:
/rag-reviewer:solve-task PRI-220. - Needs: reviewer MCP; board context is optional and the pipeline continues board-less.
- Reads/writes: reads task/code context and writes one brief under
docs/superpowers/briefs/. - Result: a compact brief handed to brainstorming; implementation happens in later skills.
ask — grounded codebase Q&A
- When: ask where code lives or how a subsystem works.
- Invoke:
/rag-reviewer:ask how does index freshness work?. - Needs: a built base index and graph.
- Reads/writes: reads repository context and local files; does not modify or review code.
- Result: a Russian explanation with real
path:linecitations.
pr-walkthrough — human reading guide
- When: orient a human reviewer without running a bug review.
- Invoke:
/rag-reviewer:pr-walkthrough owner/repo#123. - Needs: reviewer MCP, PR access, base index, and graph.
- Reads/writes: reads impact/diffs/callers; posts only on explicit request.
- Result: centrality-first reading order, per-file summary, and grounded impact notes.
performance-review — performance-only review
- When: inspect a diff for repeated work, N+1 I/O, asymptotics, batching, caching, or memory.
- Invoke:
/rag-reviewer:performance-review. - Needs: a diff/PR or explicit change scope; reviewer context is fail-open.
- Reads/writes: reads the selected changes and nearby context; does not publish by itself.
- Result: only concrete performance findings, with assumptions stated.
maintainability-review — maintainability-only review
- When: inspect complexity, readability, duplication, boundaries, and repository conventions.
- Invoke:
/rag-reviewer:maintainability-review. - Needs: a diff/PR or explicit change scope plus repository guidance.
- Reads/writes: reads changes and nearby patterns; does not change behavior.
- Result: focused simplification findings, excluding unrelated correctness/performance advice.
create-task — create a canonical board task
- When: file a grounded task on the configured board.
- Invoke:
/rag-reviewer:create-task describe the requested change. - Needs: registered board config, discovered create target/options, and project credentials.
- Reads/writes: reads code for evidence; calls
create_taskonly after explicit confirmation. - Result: canonical body, task key/URL, and a refreshed task corpus.
decompose-task — create native child tasks from one parent
- When: split an existing board task into grounded, independently actionable native children.
- Invoke:
/rag-reviewer:decompose-task PRI-224. - Needs: a stored parent, configured board, authoritative
native_subtaskscapability, task context, similar tasks, and relevant code fromsearch_codebase. - Board config: inspect the repository
task_boardkey once. A present null/empty/disabled explicitly disables board work and never calls deploy-wideget_board_config. Only an absent repository key may callget_board_configonce; a mapping freezes generictype,project, andoptionsfor the entire flow. - Preview/confirmation: shows the provider, parent, idempotency key, and complete canonical body of every child, then asks for one explicit confirmation of the whole preview; no earlier write.
- Write/verification: sends exactly one confirmed initial batch. Every actually attempted batch
write is verified regardless of status (
ok,partial,error, or timeout) before declaring its outcome or offering recovery. - Verification: performs exactly one project-scoped sync, re-reads the parent with
get_taskand graph/context withget_task_contexteven when no child keys were returned, and point-reads every returned child key withget_task. - Recovery: partial, timeout, or error recovery is never automatic. The skill preserves and
reports
status,category, andretryable. After verification, only transport timeout or unknown outcome orretryable=truereaches a new explicit user choice between exact retry or stop;retryable=false, andunsupported,conflict, andparent_not_foundstop without retry. Exact retry replays the same full payload, order, and idempotency key; it never mints a new key, never edits wording, and never sends only the remainder. - Result: created/attached/unattached/pending children and warnings, reported without guessing.
finish-task — close a task after its PR
- When: a PR exists and the board task should be linked and completed.
- Invoke:
/rag-reviewer:finish-task PRI-220 https://github.com/owner/repo/pull/123. - Needs: task key, PR URL, registered board config, and discovered done target/options.
- Reads/writes: after explicit confirmation, appends the PR idempotently, updates the task, prepends a task backlink to the PR body, and re-syncs.
- Result: done state plus
already_closed/task_link_addedreporting without duplicate links.
sync-codebase — build or update the base index
- When: initialize an index, refresh stale code, or rebuild the graph.
- Invoke:
/rag-reviewer:sync-codebase --path /srv/repo --ref main. - Needs: git clone,
uvx, reviewer services, Voyage, and optional SCIP. - Reads/writes: reads the selected git ref and writes branch-scoped vectors/graph nodes.
- Result: incremental index report; failures name the missing prerequisite.
sync-tasks — warm task vectors and graph
- When: synchronize a configured board before task search or solve-task.
- Invoke:
/rag-reviewer:sync-tasks. - Needs: use
reviewer init, configure the selected provider as documented indocs/board-providers.md, then validate it withreviewer check. - Reads/writes: calls idempotent server-side
sync_boardin repo mode with canonical repo and tracked branch. The server resolves effective policy; the client does not reconstruct it. It reads the board and does not write back. Policy errors never retry as an unfiltered explicit call. - Result:
eligible,filtered_by_age,filtered_archived,age_unknown,archive_unknown,filter_applied,filter_fingerprint,filter_source,by_board,purge, andwarnings; missing config remains board-less/fail-open.
summarize-subsystems — GraphRAG subsystem summaries
- When: build or refresh the architectural prior used by Q&A and PR walkthroughs.
- Invoke:
/rag-reviewer:summarize-subsystems. - Needs: a fresh base index, code graph, reviewer MCP, and confirmation of cluster depth.
- Reads/writes: читает только добавленные/изменённые файлы, переиспользует сохранённые пофайловые fragments и атомарно пишет fragments вместе со сводкой кластера.
- Result: сводки и метрики
created/reused/removed/moved,deferred/raced,fragments_prunedиembedded.
Первый полный прогон после обновления создаёт fragments для всех текущих файлов, но не удаляет
старые сводки: каждый кластер заменяется только после успешной атомарной записи нового bundle.
При настроенном cap bootstrap может занять несколько проходов. Freshness считается по
skeleton-коду, поэтому правка только тела функции намеренно остаётся невидимой, пока не изменится
skeleton. Layout identity — canonical token от default summary_cluster_depth и
нормализованных summary_cluster_depth_overrides: смена любого из них принудительно пересобирает
все fragments, даже если default depth прежний. Частичный или ограниченный cap-ом прогон не
запускает prune; optimistic race (stored=false) тоже считается отложенным, не успехом, и
запрещает prune в этом проходе. Полный проход передаёт в prune token и точную карту
cluster_key → source_hash; сервер повторно выводит layout и под advisory lock проверяет каждую
summary и same-generation fragment coverage до удаления сирот и финализации state. Embedding
backfill пишет вектор только по exact CAS source_hash + title + summary, поэтому конкурентная
перезапись текста не получает устаревший вектор и не увеличивает embedded.
configure-review — update layered policy and branches
- When: tune tracked branches, ignored paths, retrieval limits, summary clustering, or board metadata.
- Invoke:
/rag-reviewer:configure-review. - Needs: a git repository; MCP and databases are not required for baseline analysis.
- Reads/writes: reads tracked Python structure/history and changes approved YAML fields in either
home:repos/<owner>/<name>.ymlor committed.review.yml; branch values always go to the home per-repo YAML. - Result: preserved foreign keys/comments plus exact rebuild guidance.
Operations, troubleshooting, and limitations
Health checks
Use these before investigating application behavior:
reviewer check
reviewer status /path/to/repo --json
docker compose ps
reviewer check validates configured credentials and service connectivity without spending
Voyage quota. status compares the indexed SHA with the selected local ref and reports chunks,
graph nodes, subsystem summaries, and commit drift for each tracked branch.
Index freshness and recovery
drift == 0: the base index matches the selected ref.drift > 0: runreviewer index /path/to/repo --ref BRANCHafter considering Voyage cost.drift == nullor zero chunks: the branch has no usable base record; build it explicitly.- Missing
IMPLEMENTSedges: ensure SCIP is installed and rebuild with the SCIP backend. - Orphaned
pr:Noverlays or expired persisted sessions: runreviewer gc.
Base indexes track committed refs, not working-tree edits. During planning or review, read uncommitted files directly from disk.
Common failures
| Symptom | Likely cause | Next action |
|---|---|---|
reviewer check reports Postgres/Neo4j unavailable |
Default stores are not running or DSNs differ | Run docker compose -f ~/.config/rag-reviewer/docker-compose.yml up -d, then repeat reviewer check |
| Voyage returns 429 | Free-tier RPM/TPM quota is exhausted | Wait for the quota window; rerun incremental indexing rather than deleting the index |
| PR is skipped | Its target branch is not tracked for this repository (see reviewer config show), or draft policy skips it |
Inspect prepare_review reason; if the target is intentional, add the branch via the per-repo home layer (or REVIEW_BRANCHES fallback), not just policy |
| Task lookup is empty | Board is disabled/unconfigured or the corpus is cold | Validate board setup, then run /rag-reviewer:sync-tasks |
| Q&A misses new local code | Base index contains only a committed ref | Read the local file or commit/index the intended branch |
| AI client cannot see new skills | Client session predates installation | Start a New Chat/new CLI session; use Reload Window in an IDE |
Secondary context is deliberately fail-open: an unavailable graph, board, subsystem prior, or historical PR diff should reduce context and produce a warning, not invent data.
Web admin
The optional web UI shows review runs, findings, traces, and aggregate statistics:
pip install -e ".[web]"
cd web/frontend && npm install && npm run build && cd ../..
reviewer serve
The container keeps its internal listen port separate from the published loopback port. Build it
once and choose both at runtime (replace database with a Postgres host reachable from the
container):
docker build -f web/Dockerfile -t rag-reviewer-web .
docker run --rm \
--env PG_DSN=postgresql://reviewer:reviewer@database:5432/reviewer \
--env REVIEWER_WEB_PORT=8080 \
--publish 127.0.0.1:18000:8080 \
rag-reviewer-web
The Compose service is opt-in, so ordinary docker compose up still starts infrastructure only:
docker compose --profile web up -d web
REVIEWER_WEB_PORT=8080 REVIEWER_WEB_PUBLISH_PORT=18000 \
docker compose --profile web up -d web
Without overrides, both the internal and published ports default to 8000.
Set WEB_ADMIN_USER and WEB_ADMIN_PASSWORD before exposing it beyond localhost. Store and API
errors are reported without preventing the process from starting where fail-soft behavior is safe.
Security
- Keep Voyage, VCS, board, database, and web-admin credentials in server env, never
.review.yml. - Use least-privilege VCS tokens; publishing and
finish-taskperform external writes. - Review every confirmation gate before comments, board tasks, status transitions, or PR-body changes.
- Stored copies stay in the configured databases, but code chunks and search text are sent to Voyage; PR diffs and retrieved context are also sent by the AI client to its AI model provider.
- External provider calls require network access; ordinary unit tests do not.
Known limitations
- Python is the supported analysis language; SCIP gives the most accurate graph.
- Without SCIP, tree-sitter provides a useful but name-based
CALLSgraph and no preciseIMPLEMENTScoverage. - GitHub permits inline comments only on commentable diff lines; other findings appear in summary.
- Full indexing can hit Voyage free-tier limits; updates are incremental and reuse embeddings.
- The base index is branch-scoped and blind to uncommitted working-tree changes.
- OAuth loopback flows are not supported in headless/SSH integrations; use documented PAT/API-key credentials.
- Board work is optional. Missing provider configuration keeps task-aware skills board-less rather than blocking code retrieval.
Development
Create an isolated environment and install development dependencies:
python -m venv .venv
.venv/bin/pip install -e ".[dev]"
git config core.hooksPath .githooks
The last command enables the tracked pre-commit hook: it runs ruff check on staged .py
files and blocks the commit when they are not clean. Git cannot enable hooks automatically, so
every clone opts in once. Bypass a single commit with git commit --no-verify.
Unit tests prohibit external and localhost sockets and exclude integration tests by default:
.venv/bin/pytest -q
.venv/bin/ruff check .
Run integration services in the isolated test profile:
docker compose --profile test up -d --wait paradedb-test neo4j-test
.venv/bin/pytest -q -m integration
docker compose --profile test rm -sfv paradedb-test neo4j-test
Never use docker compose --profile test down -v: the test and development services share a
Compose project, so that command can remove development volumes.
| Area | Responsibility |
|---|---|
reviewer/index/, reviewer/retrieval/ |
chunking, vectors/BM25, freshness, reranking |
reviewer/graph/ |
tree-sitter/SCIP graph construction and Neo4j access |
reviewer/mcp/, reviewer/services/ |
PR sessions, tools, prepare/publish orchestration |
reviewer/tasks/ |
task storage, graph, sync, and registered board providers |
plugin/skills/ |
user-facing agent workflows |
tests/ |
offline unit and isolated integration contracts |
Read CLAUDE.md before changing architecture or invariants. Keep Russian comments, docstrings, and CLI messages; use Conventional Commits without self-attribution.
License
MIT © rag_for_git contributors.
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