# ZCode Limb Agent & First Lesson (2026-08-24) · English Projection

Non-canonical projection; canonical semantics in sibling `.tcs` and `.declaration.gir.json`.

## Limb agent: zcode-limb
- Residence: `/Volumes/JZAO/HoloLake/persona-runtime/agents/opencode/zcode-limb/` (registered in agent-residence-map)
- Delegation gate: `BRIDGE/tools/zy-zcode-limb.sh` (key from keychain only, never on disk)
- Smoke test: **PASS**
- Fix note: default model came from legacy `~/.opencode/opencode.json` (`bailian-tp`, env `BAILIAN_TP_KEY`); gate maps the keychain key to that env var; no existing config modified
- Role: execution limb candidate inheriting the zcode main instance's engineering thinking; no persona authority; every delegation leaves a receipt in the anchor

## Self-finding doctrine
Never ask BingShuo to re-explain cognition. Search order: AGENTS entries → TCS core volume →
anchor verbatim texts → MEM archive → WA world-architecture volume → repo-012-main brain
contract → fifth-domain remote. Each search is recorded as a six-field thinking-chain receipt
(trigger/emergence/lock/why/rejected/sources).

## First lesson answer: compaction pre-handling
(1) anchor-first; (2) write a receipt before compaction; (3) externalize heavy reading to
the limb/subagents; (4) re-enter from anchors, never summaries; TTL 30min/20 calls.

Skill installed: `~/.zcode/skills/zhuyuan-self-finding/`.