REPORT: phase 2 status — skeleton works, gaps and next chunk listed

Records what the skeleton does (config, routing, single-shot loop, intake,
gated bash, REPORT writeback, test coverage), the one missing input for the
live MVP demo (HARNESS_LITELLM_KEY), the stubbed items (redmine notes,
budget gate, bw refs, streaming/resume, session persistence), and the
ordered phase 3 work.

💘 Generated with Crush

Assisted-by: Crush:glm-5.2

REPORT.md

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+# REPORT — harness skeleton (build phase 2) — 2026-08-28
+
+## Works
+
+- **Config**: `harness.toml` via a stdlib-only TOML-subset parser (tables,
+  bare keys incl. hyphens, strings/ints/bools, single- and multi-line
+  arrays; trailing commas tolerated; anything richer fails loudly with
+  line numbers). Defaults + validation; secrets are refs only
+  (`env:NAME` / `file:PATH` / `literal:VALUE`; `bw:` reserved) and redacted
+  from every error path. `harness.toml.example` is tracked and load-tested
+  so it can never rot; real configs are gitignored.
+- **Model routing v0**: `[models]` tier map + `[models.classes]` class map;
+  requests go out with the CONCRETE model resolved from the map
+  (mopac-study→glm-4.7-flash, mopac-code→glm-5.2, mopac-review→glm-5-turbo,
+  mopac-primary→glm-5.3, + mopac-vision→glm-4.6v). No heuristic code;
+  unknown class = hard error naming the config section.
+- **Conductor single-shot**: `harness once` = intake → routing → bounded
+  turn → REPORT, then exit 0. Chainable, no daemon. `--dry-run` = intake +
+  plan (resolved model, tool bounds) with ZERO LLM calls (test-asserted).
+  `--task-id` filter for chaining. Exit codes: 0 ok/no-tasks, 1
+  config/usage, 2 intake, 4 llm/turn.
+- **Intake**: Redmine `/issues.json` scope query (raw filter params or
+  saved query id), task class from a configurable custom field with
+  default-class fallback; `--demo` builds the issue from `[demo]` (no
+  Redmine needed).
+- **Bounded turn**: OpenAI-compatible chat via LiteLLM (stdlib http;
+  base_url ± `/v1` normalized; Bearer auth; retry/backoff on 429/5xx/
+  transport; usage accounting), tool-calling loop capped at `max_rounds`;
+  gate denials feed back to the model as tool results and are counted, not
+  fatal. On mid-turn LLM failure after content exists, a partial REPORT is
+  still written with the error as stop reason.
+- **Exec tool**: allow-listed bash. maki-derived scope semantics without
+  tree-sitter: compound commands split segment-by-segment (`&&`/`||`/`;`/
+  `|`, quote-aware), `cmd *` word-boundary, `pfx*` raw prefix, `pfx/**`
+  path prefix, `*` universal; deny beats allow; `$()`/backticks/subshells
+  always denied (headless has no prompt channel). Per-command timeout with
+  process-group cleanup on unix; output truncation.
+- **Writeback**: `REPORT-<vertical>-<task>-<ts>.md` + `REPORT-latest.md`
+  (atomic tmp+rename) with model/tier/class/tokens/rounds/denied/stop
+  telemetry per the DESIGN auditability bar.
+- **Tests**: table-driven, stdlib `testing` only — TOML subset (valid doc
+  + 9 error cases), config defaults/validation/key refs (incl. leak check),
+  routing decisions, scope matcher + gate (14 cases) + exec (timeout,
+  truncation, deny), writeback, Redmine intake (httptest), LLM client
+  (auth/model/retry/4xx/empty-choices), and loop end-to-end against a
+  scripted fake OpenAI server (demo turn, dry-run zero-call, tool
+  round-trip with message-shape assertions, denial counting, round limit,
+  error-class mapping). `go build ./...`, `go vet ./...`, `go test ./...`
+  all clean on go1.26.7; every intermediate commit builds standalone.
+
+## MVP demo bar status
+
+`harness once --demo` is wired end-to-end: prompt "tell me about yourself"
+→ LiteLLM (glm-5.3 via mopac-primary) → GLM self-description → REPORT.
+Proven against a scripted fake in tests. The live proxy
+(http://192.168.3.78:4001) is reachable from this host and answers 401
+without a key, so the live run needs exactly one thing:
+
+    export HARNESS_LITELLM_KEY=<vertical virtual key>
+    ./bin/harness once --demo
+
+## Stubbed / known gaps
+
+- Redmine issue-note writeback (SoR note after the REPORT) — file only.
+- Budget/semaphore GATE (LiteLLM spend APIs, class-aware slots) and cost
+  in REPORT (tokens only today).
+- `bw:` key refs error until the bitwarden wrapper (phase 3).
+- Streaming + turn resume on truncation — retry is request-level today.
+- Session persistence + read-time repair (crush notes §2) — not started.
+- Write confinement to declared roots + symlink-aware canonicalization;
+  redirects currently match by segment text (phase 3 permission layer).
+- Task selection is first-in-scope; no P1-first ordering or status
+  transitions, so chained `once` re-picks the same issue (use --task-id).
+- Local inbox intake (DESIGN core-loop step 1, second half) — not started.
+
+## Next chunk (phase 3)
+
+1. bitwarden-go wrapper + `bw:` refs (unblocks secret posture).
+2. Full permission layer: tree-sitter bash scopes, write roots, symlink
+   checks, per-vertical allow/deny presets.
+3. Redmine note writeback + status transition so chaining advances scope.
+4. Budget gate via LiteLLM spend APIs; cost line in REPORT.
+5. Streaming with truncation retry + turn resume.