model-inheritance

Model Inheritance

Owner: orchestrator
Consumers: all /kon:* commands that spawn Task subagents

Core principles (always): follow skills/core-principles — simplest correct spawn config; never omit model and hide the mismatch.

Problem

Cursor does not inherit the parent chat model on Task subagents. If you omit model, subagents often run on Composer while the orchestrator uses Opus, Sonnet, etc.

Per-agent model: lines in agents/*.md frontmatter are not applied to Task spawns — ignore them for model selection.

Rule

Every Task spawn and resume must pass model=<orchestrator slug>.

Use the same slug on resume passes (fix/re-review loops).

Resolve the slug

1. Session (preferred) — recorded automatically from Cursor on each prompt:

MODEL=$(python3 $KON_ROOT/scripts/kon_session.py get-orchestrator-model --id "$SID")

1. Your runtime — if the query above is empty, use the model slug from your Cursor session context (the model the user selected in the composer bar).

2. Overrides — KON_ORCHESTRATOR_MODEL env or ~/.kon/config.json → orchestrator_model.

Task spawn example

Task(
  subagent_type="generalPurpose",
  model="<same slug as orchestrator>",
  prompt="Read agents/Azusa.md …",
  description="Azusa explore",
)

Do not rely on subagent_type="explore" alone — still pass model.

Verify

After spawning, the subagent label in Cursor should match the orchestrator family (e.g. Opus 4.8 ↔ claude-opus-4-8-thinking-high), not Composer 2.5.