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feat(#1945): tracer-first planning default + executor feedback gate (#2294)

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* feat(#1945): tracer-first planning default + executor feedback gate

Make "thin end-to-end slice first, verify, then expand" the default planning + execution discipline instead of the opt-in --mvp mode.

- gsd-planner: first-class `type="tracer"` task; every plan LEADS with one production-quality end-to-end tracer slice by default; --no-tracer restores horizontal layers; --mvp/--tdd compose on top.
- gsd-executor + execute-plan: post-tracer feedback gate — autonomous runs halt-on-fail before expansion, interactive runs emit checkpoint:human-verify after the tracer.
- --no-tracer flag wired through plan-phase workflow/command/help/skill.
- CONTEXT.md glossary defines tracer bullet vs prototype; docs + references reconciled.
- tests/tracer-bullet.test.cjs: prose-contract + behavioral (verify plan-structure accepts tracer) coverage.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

* chore(#1945): backfill changeset PR number to 2294

---------

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Tom Boucher
2026-07-15 09:41:36 -04:00
committed by GitHub
parent a68f1be10e
commit 315d94f6d4
36 changed files with 611 additions and 206 deletions
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docs/reference/plan-md.md
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@@ -144,7 +144,7 @@ References source files the executor needs to read. Includes project-level plann
### `<tasks>`
Contains one or more `<task>` elements. Every task element must carry `<name>`, `<files>`, `<read_first>`, `<action>`, `<verify>`, `<acceptance_criteria>`, and `<done>` for `type="auto"` tasks.
Contains one or more `<task>` elements. Every task element must carry `<name>`, `<files>`, `<read_first>`, `<action>`, `<verify>`, `<acceptance_criteria>`, and `<done>` for `type="auto"` and `type="tracer"` tasks.
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@@ -153,6 +153,7 @@ Contains one or more `<task>` elements. Every task element must carry `<name>`,
| Type | Use | Autonomy |
|---|---|---|
| `auto` | Everything the executor can do independently. | Fully autonomous. |
| `tracer` | The leading thin end-to-end slice a plan starts with by default (tracer-first) — production-quality, wired through every layer, with a real end-to-end `<verify>`. | Fully autonomous; after committing, the executor runs the tracer's `<verify>` as an early integration gate — autonomous runs halt on failure before expansion, interactive runs present a `checkpoint:human-verify`. |
| `checkpoint:human-verify` | Visual or functional verification that requires a human to look at a running UI or service. | Pauses execution; presents to the developer; resumes on approval. |
| `checkpoint:decision` | Implementation choices that arose during execution and require the developer's input. | Pauses execution; presents options; resumes on selection. |
| `checkpoint:human-action` | Truly unavoidable manual steps (account creation, hardware interaction). Used sparingly. | Pauses execution; resumes on confirmation. |