# AGENTS.md

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<!-- REPOWISE_AGENTS:START — Do not edit below this line. Auto-generated by Repowise. -->
## Codebase Intelligence for ottyl (Repowise)

Indexed by [Repowise](https://repowise.dev). Last indexed: 2026-09-07 (commit 0c41048). Confidence: 98%.
### How to work in this repo

- **Trust the index.** `verified: true` means the bytes were checked against the live tree, so never re-read those lines. Re-read only on `bounds: "approximate"`, `_meta.stale_warning`, `search_method: "bm25"` or `confidence: "low"`; `index_behind: true` alone is informational.
- **Pre-edit, not instead-of-edit.** These tools decide *which* files to read and edit. Reading a file before you edit it is correct and expected.
- **Noisy commands** (tests, builds, `git log`/`diff`, searches, listings): prefer `repowise distill <cmd>`, the same command with its exit code preserved and errors-first output. A `[repowise#<ref>: N lines omitted]` marker is recoverable via `repowise expand <ref>` (add `-q <regex>` to filter); never re-run the command to see omitted output.
- **Recording a decision** you had to reason out: `repowise decision add --title T --decision D` records it without prompting and prints the id (`--format json` to parse it back). It lands `proposed`, for a person to confirm.

### Tools

| Tool | When and why |
|------|--------------|
| `get_answer(question)` | First call for any how/where/why question. Cite `confidence: "high"` or `grounding: "extracted"` directly; `degraded` means judge by `retrieval_quality`. `symbol_bodies` has live bodies. |
| `get_context(targets=[...])` | Triage card for files/modules/symbols: docs, signatures, hotspot, fix history. No source bytes — `include=["skeleton"]` for the whole file verified, `["callers"|"decisions"]` for depth. Batch targets. |
| `get_symbol(id)` | **Follow-up, not an entry point** — one verified body for an id a prior response named (`path.py::Name`, `path.py:140-180`, `repowise#<hex>`). Never walk a file symbol by symbol; Read it. |
| `search_codebase(query)` | Hybrid search, auto-routed by query shape; force with `mode=symbol|path|concept|hybrid`. A hit whose `sources` are `[fts]` only has no semantic agreement, so verify it. |
| `get_why(query, targets?)` | Why the code is shaped this way: decision records, git archaeology, rationale comments. Call before a refactor or a pattern divergence. |
| `get_risk(targets, changed_files?)` | What history says about touching these files. PR mode (`changed_files`) leads with a `directive`: read `will_break` / `missing_cochanges` / `missing_tests` / `tests_to_run` first. |
| `get_change_risk(revspec, extensions?, exclude_patterns?)` | Defect score for a whole commit or `base..head` range, from its diff on the live checkout. Lead with `risk_percentile`. Scores a range; `get_risk` scores paths. |
| `get_health(targets?, include?)` | Defect / maintainability / performance scores and findings. Self-check the files you touched before finishing. |
| `get_dead_code()` | Confidence-tiered unreachable files / unused exports / zombie packages. For cleanup sweeps, not targeted fixes. |
| `get_overview()` | Architecture map. Call once, first, in an unfamiliar repo; skip it after that. |

### Architecture
ottyl ingests log & metric streams -> processes via Rust engine (parsing, filtering, PromQL) -> outputs visualized data via TypeScript web UI.

### Key modules
- `root` — What the prose above calls things, the identifier to search for, and where it lives

### Entry points
- `src/main.rs`
- `webapp/src/main.tsx`
- `webapp/src/App.tsx`

### Files that need care (bug-fix history first, then churn — check `get_risk` before editing)
- `webapp/src/App.tsx` — 3 bug fixes, last fix today; 22 commits/90d
- `webapp/src/components/Dashboards.tsx` — 3 bug fixes, last fix today; 17 commits/90d
- `webapp/src/lib/api.ts` — 1 bug fix, last fix today; 41 commits/90d
- `webapp/src/components/NavMenu.tsx` — 1 bug fix, last fix today; 22 commits/90d
- `webapp/src/components/Docs.tsx` — 1 bug fix, last fix today; 16 commits/90d

### Code health
Three co-equal signals: defect risk 7.53/10 avg, hotspot health 7.15/10 (stable), worst `src/engine/snapshot/mod.rs` at 5.5/10 · maintainability 7.91/10 · performance risk 21 open static I/O-in-loop / N+1 findings. Detail: `get_health()`.

Critical files:
- `webapp/src/components/NavMenu.tsx` — churn risk — impact −2.4
- `src/engine/tests.rs` — churn risk — impact −2.4
- `src/engine/mod.rs` — churn risk — impact −2.4
- `src/config/mod.rs` — churn risk — impact −2.4
- `src/api/dto.rs` — churn risk — impact −2.4

### Commands
- Build: `make build`
- Test: `make test`
- Lint: `make lint`
- Dev: `make dev`

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