feat(baton): B1 — routable-unit inventory (Phase 2, CHARTER-03)

experiment-baton/AILOG-2026-06-26-002-baton-b1-unit-inventory.md

@@ -0,0 +1,87 @@
+---
+id: AILOG-2026-06-26-002
+title: Baton Phase 2 B1 — routable-unit inventory
+status: accepted
+created: 2026-06-26
+agent: claude-code-opus-4.8
+confidence: high
+review_required: true
+risk_level: low
+eu_ai_act_risk: not_applicable
+nist_genai_risks: []
+iso_42001_clause: []
+lines_changed: 380
+files_modified: [experiment-baton/src/units.rs, experiment-baton/src/lib.rs, experiment-baton/CHARTER-03-dry-run-router.md, experiment-baton/tests/fixtures/governance-corpus]
+observability_scope: none
+tags: [baton, phase2, dry-run-router, units, inventory, read-only]
+related: [CHARTER-03-dry-run-router, AILOG-2026-06-26-001]
+---
+
+# AILOG: Baton Phase 2 B1 — routable-unit inventory
+
+## Summary
+
+First batch of `CHARTER-03-dry-run-router` (Phase 2). Implements the **routable-unit
+inventory**: read-only enumeration of the work StrayMark already recorded, at the
+four granularities that already exist — **inventing no new vocabulary** (concept
+§4.3 / framing decision #1): Charter, Batch, Follow-up, Task.
+
+`src/units.rs` exposes `RoutableUnit` + `Granularity` and `inventory(root, only)`.
+Each reader harvests only the signals it can read directly; computed signals
+(complexity, arch state, coherence findings) are deferred to B2. A signal a reader
+cannot see stays `None` — never fabricated.
+
+## What changed
+
+- **Charter reader** reuses `straymark_core::charter::{discover_and_parse,
+  display_title}` and `charter_files::parse_files_to_modify` — no second parser.
+  Harvests `effort_estimate` (typed XS..L) and the declared `Files to modify`
+  scope globs.
+- **Batch / Follow-up / Task readers** are tolerant, line-oriented scans (the
+  `scan.rs` philosophy: no regex, char-boundary-safe over accented prose).
+  - Batch: `### Batch N — <title>` under `## Batch Ledger` in `AILOG-*.md`; id
+    keyed `<ailog>#batch-N`.
+  - Follow-up: `### FU-NNN — <desc>` under `## Bucket: <name>` in
+    `.straymark/follow-ups-backlog.md`; harvests bucket + optional `**Severity**`.
+  - Task: `- [ ] T<b>.<n> — <text>` in `specs/**/tasks.md`; id keyed
+    `<spec-dir>:T<b>.<n>`.
+- `--granularity` selection via `Granularity::parse` (`all` → `None`).
+
+## Verification
+
+- `cargo test -p straymark-baton` ✓ — 5 new unit tests over a new fixture corpus
+  (`tests/fixtures/governance-corpus/`) covering all four granularities; full
+  suite green, `cargo clippy` clean.
+- **Sentinel dogfood** (read-only, scratch test, `git status` unchanged): the
+  inventory runs without panic on the real, messier corpus —
+  `charter: 45 · batch: 82 · followup: 135 · task: 500`. It also handled
+  Sentinel's `T001`-style task ids alongside the fixture's `T1.1` form.
+
+## Impact
+
+Read-only and non-breaking. No model/network/agent dependency (NFR2 holds by
+construction — the module has none). Sets up B2 (signal aggregation) and B3
+(classifier).
+
+## EU AI Act Considerations
+
+Not applicable — local developer tooling; no automated decision-making, no
+personal data, no model inference. Read-only over the target tree (NFR1).
+
+## Batch Ledger
+
+### Batch 1 — B1: routable-unit inventory (T1.1–T1.4)
+Completed 2026-06-26 — this AILOG's PR. `src/units.rs` + fixture corpus + 5 tests;
+Sentinel dogfood read-only. Charter → `in-progress`.
+
+### Batch 2 — B2: signal aggregation (T2.1–T2.4)
+Pending.
+
+### Batch 3 — B3: cheap classifier (T3.1–T3.4)
+Pending.
+
+### Batch 4 — B4: tier policy + telemetry + CLI (T4.1–T4.5)
+Pending.
+
+### Batch 5 — B5: Sentinel dogfood + acceptance (T5.1–T5.6)
+Pending.

experiment-baton/CHARTER-03-dry-run-router.md

@@ -1,6 +1,6 @@
 ---
 charter_id: CHARTER-03-dry-run-router
-status: declared
+status: in-progress
 effort_estimate: L
 trigger: "Baton concepto §7 Fase 2 — no existe ninguna noción de modelo/tier/presupuesto/costo en StrayMark; todo el trabajo corre con el mismo modelo (commit trivial o rediseño). Presión económica §1.1 (fin de subsidios, pago por Mtoken). Tras la Fase 1 (Coherence Bridge), validar empíricamente el principio económico §4.2 sin tocar modelos."
 originating_concept: experiment-baton/01-baton-concept.md
@@ -11,7 +11,7 @@ related_issues: [304]
 
 # Charter: Baton Fase 2 — Clasificación + router en seco (dry-run, recomienda no ejecuta)
 
-> **Status (espejo del frontmatter; la fuente de verdad es el frontmatter):** declared. Effort: L.
+> **Status (espejo del frontmatter; la fuente de verdad es el frontmatter):** in-progress. Effort: L.
 > **Origen:** concepto [01-baton-concept.md](01-baton-concept.md) §4.2 + §7 (Fase 2) + §10.4 (unidad enrutable).
 > **Encuadre:** segunda fase del experimento Baton. **Recomienda, no ejecuta. Toca modelos solo como telemetría — riesgo cero.** Prototipa en `experiment-baton/`, lógica pura/typed diseñada para graduar a `straymark-core`.
 

experiment-baton/src/lib.rs

@@ -19,3 +19,4 @@ pub mod overlay;
 pub mod provenance;
 mod scan;
 pub mod speckit;
+pub mod units;