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refactor(subagent): drop the agentType lifecycle field

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Address review: `agentType` was a Claude-Code concept (`subagent_type`) that
does not fit our own subagent seam — nothing in the harness interprets it, and
its only consumer was the CC-dialect hook bridge. Rather than let a foreign
concept sit on the core seam, remove it:

- `SubagentStartRequest`, `SubagentRunInfo`, `SubagentRunEndInfo`: drop the
  `agentType` field; the `subagent/start`/`subagent/end` payloads now carry
  `provider`/`id` (+ end `stopReason`/`lastAssistantMessage`) only.
- `dsh-tool-subagent`: drop `Config.agentType` and its request plumbing.
- Tests: keep the lastAssistantMessage / clone-containment / reject-path
  coverage (rewritten to not assert agentType); delete the two tool-subagent
  tests that only exercised agentType forwarding (dead behavior).
- Docs: retitle + rewrite the subagent-observe-enrich RFC to the one shipped
  enrichment (lastAssistantMessage), with a note on why agentType was dropped;
  update rfc/README index title, both subagent READMEs, and the
  core-data-structures/subagent.md type-equiv block + prose; regenerate catalog.

The CC bridge (PR-F) will feed Claude Code's own default matcher value
"general-purpose" for its SubagentStart/Stop agent_type matcher instead.
This commit is contained in:
Tianyi Cui
2026-07-02 05:52:02 +08:00
parent 8514bddd82
commit 84f3019310
11 changed files with 29 additions and 138 deletions
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docs/rfc/README.md
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@@ -87,7 +87,7 @@ Do NOT write one for a mechanical or local choice (a variable name, a one-file r
| [ACP subagent backend (out-of-process delegation)](implemented/feature/2026-06-22-acp-subagent-backend.md) | 2026-06-22 |
| [The `todo_write` tool — model task list as event-sourced session state](implemented/feature/2026-06-29-todo-write-tool.md) | 2026-06-29 |
| [Interception seams — the typed-Decision surface a hook programs against](implemented/feature/2026-06-30-interception-seams.md) | 2026-06-30 |
| [Subagent lifecycle enrichment — agentType + lastAssistantMessage (observe-only)](implemented/feature/2026-06-30-subagent-observe-enrich.md) | 2026-06-30 |
| [Subagent lifecycle enrichment — lastAssistantMessage (observe-only)](implemented/feature/2026-06-30-subagent-observe-enrich.md) | 2026-06-30 |
### Simplification