classify-task

Classify one task into a complexity tier — trivial, standard, or complex — and emit that tier plus a short rationale. The tier's {model, effort} roster is not your output — consumers resolve it from the plugin's resolve-tier.sh (see Roster resolution below). You run on the main thread because only the main thread can spawn the Explore subagents that ground the call. You are read-only apart from gh issue view: you inspect, classify, and emit a contract — you never edit.

/pipeline invokes this at its Step 0.5 to pick the tier for the run; you can also be invoked directly (/classify-task <issue#|brief>). The output contract at the bottom is load-bearing — callers parse it — so emit it verbatim.

Roster resolution

The tier→{model, effort} mapping lives in ${CLAUDE_PLUGIN_ROOT}/model-tiers.json, resolved by the plugin's helper — not copied here. To see any tier's roster, run:

bash "${CLAUDE_PLUGIN_ROOT}/scripts/resolve-tier.sh" <tier>

It prints that tier's planner / implementer / reviewer {model, effort} pairs (or the standard roster plus a single warning if the config is missing or invalid). Never mix cells across rows — a tier is one whole row. The previous hardwired /pipeline roster ≈ the complex tier; the two cheaper tiers sit below it.

Step 1 — resolve the brief

Strip a trailing --no-confirm flag first (batch mode — see Step 4); the rest of $ARGUMENTS is the brief.

• A leading integer (12, #12) in $ARGUMENTS → issue mode: gh issue view <N> --json title,body,labels. The title + body is the brief; labels are context.
• Otherwise $ARGUMENTS is the brief (callers pass a distilled brief, not the raw conversation).
• Empty $ARGUMENTS → ask the user for the task before classifying.

Step 2 — ground the call (Explore fan-out)

Decide the count yourself from the brief:

• 1 Explore agent when the work is clearly scoped to a single area.
• 2–3 Explore agents when the brief spans multiple distinct components or its scope is ambiguous — one per area, spawned in parallel.

Spawn Explore agents with the Agent tool, model: "sonnet", with targeted prompts (the area to map, the seams/contracts to find, the brief's intent). Each returns:

• the relevant files;
• the seams / contracts / data shapes the change touches;
• whether it fits existing infrastructure or introduces new kinds of things;
• the downstream consumers of what it changes.

Step 3 — classify

Size is not the signal. A one-line change that moves a seam or changes a data contract is complex; a hundred lines of mechanical edits with no design decisions is trivial.

• trivial — mechanical, no design decisions: the implementer just executes (renames, string/config edits, format-preserving tweaks, obvious one-spot fixes).
• standard — real judgment within existing seams: reuses the current infrastructure, no contract moves, consequences stay local.
• complex — new infrastructure, seams move (a contract/interface/data shape changes), or there are downstream consequences for other components.

Reason through four questions before you decide:

1. Does it use existing infrastructure, or add new kinds of things?
2. Does it fit the current seams, or do seams move?
3. Are there embedded design decisions the implementer would otherwise have to make?
4. Does it have downstream consequences for other components?

Produce a tier plus a 1–3 sentence rationale that names the specific signals (concrete files/seams from the exploration, not generalities).

Step 4 — confirm / override

Batch mode (--no-confirm): skip this step — emit the Step-5 contract directly, with no AskUserQuestion. The batch caller is /orchestrate's launch-time tier backfill (Step 0a): it invokes you once per scoped issue that carries no tier:* label, auto-accepts the tier and writes it back as a label. That run is autonomous past its launch gate, so a per-issue confirm here would stall it — never prompt in batch mode.

Otherwise, show the user the tier, the rationale, and the classified tier's resolved roster — run bash "${CLAUDE_PLUGIN_ROOT}/scripts/resolve-tier.sh" <tier> to fetch it — then AskUserQuestion: trivial / standard / complex / proceed (accept the classification). An override swaps to that tier wholesale (re-resolve its roster) — never a mixed row.

Step 5 — output contract

Emit exactly these two lines (the confirmed tier plus its rationale):

tier=trivial|standard|complex
rationale=<one to three sentences>

The tier is the whole contract — callers resolve the {model, effort} roster themselves through resolve-tier.sh (one resolution site), so this skill never emits a model or effort.