The 15 Skill(effort-*) citers now call mcp__model-router__route per phase (orchestrate at a dispatch span, reflect/plan for the skill's own level, apply at the bookkeeping tail, escalate at the verify-secure caps); built-in judgment dispatches carry an explicit effort= param. lib/effort-shift.md is the route doctrine, lib/model-gate.md the mod rule (route answer = witness, /route on as remedy). Deleted: skills/effort-*, lib/effort-pins.txt/.sh, lib/model-check.sh, their tests, the installers' re-apply blocks. The mod drops its Skill(effort-*) bridge. The tracked model:/effort: frontmatter stays as the off-state floor, census-locked equal to the rows (lib/tests/effort-routing.test.sh rewritten, 140 checks; analyzer → xhigh). Contract .claude/tasks/contracts/2026-10-10-model-router-w2b-1045.md, plan r4 § W2-B: GATE 0 MET, verifier ECARTS(7) then CONFORME 10/10, security PASS, full make test green (design-tool-gate env red only).
59 lines
2.7 KiB
Markdown
59 lines
2.7 KiB
Markdown
# Route doctrine — phase-level model and effort on the main loop (BDR-107)
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Shared include, companion of `lib/model-gate.md`: the gate fixes WHICH model
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reflects, the model-router mod (`mods/model-router`) fixes HOW HARD each
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phase thinks. Rungs: low (fix a line, run a script) · medium (day-to-day) ·
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high (refactor, resisting bug) · xhigh (architecture, audit before
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validation) · max (stuck error, judged need).
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## The tool
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`mcp__model-router__route` (params `phase` | `effort` | `clear`). It is a
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deferred tool: when not loaded, run
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`ToolSearch("select:mcp__model-router__route")` once per session. A route
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applies from the next request on, paired with
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another tool call or not (pairing only saves a request). The answer always
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names the id and effort main runs on. A skill with a row routes itself on
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load; a skill without one changes nothing, the last ROWED skill wins.
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## Wiring points
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1. Dispatch span starts → `route(phase="orchestrate")`, sent with the
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dispatch.
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2. Reflection resumes (challenge synthesis, verdict, plan revision) →
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`route(phase="reflect")` or `"plan"` per the skill's own level; the line
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before every `lib/challenge-plan.md` call.
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3. Bookkeeping tail (memory commit, doc commit) → `route(phase="apply")`.
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4. Escalation → `route(phase="escalate")`: verify-secure loop caps and
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ship-feature STEP 4b. Not automatic: the challenge fail-safe and "gone
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WRONG → STOP"; their STOP text names the levers below.
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5. Built-in judgment dispatch (`general-purpose` `model="opus"`, `model:
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"fable"` skill-runners) → explicit `effort=` on the Agent call (`xhigh`
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for opus reviewers, `high` for fable runners). A main route never
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reaches a child. Typed agents run on their row, never on a shift.
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6. After a prose gate that ends the turn, the resumed reflection phase
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starts with its own route call.
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## Run slot and levers
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A best-tier skill row survives the end of the turn (a run spans prose
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gates); `/route clear`, `/route off` and a user `/model` drop it. Levers for a
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relaunch: `ultrathink` in the prompt (turn floor) or `/route effort=max`
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(sticky, `/route clear` after).
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Builtin `/effort` is NOT a lever inside a run: rows and routes outrank it.
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## Limits
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- A skill typed while a background agent is live routes only through the
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typed marker (unverified live 2026-10-10).
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- Headless (`-p`, SDK) runs the hooks, so routing works there too.
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- Mod off: typed agents fall back to their `model:`/`effort:` frontmatter.
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Measure the split any time: `python3 ~/.claude/lib/effort-audit.py`
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(thinking/output/cache tokens per scope, model and effort).
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## Never
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- A route inside a dispatched agent: its row rules there.
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- Max is for diagnosis, not for retrying the same fix harder.
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