fix: never-Skill prohibition made unambiguous; docsync fixture made diagnostic

The ship-docsync E2E flaked on this sandbox because the driven agent
resolved the STOP pointer's ~ to nonexistent homes (/root, /home) and
acted blind — pass/fail sampled model priors, not the prompt. The
fixture prompt now names the planted sections dir, making local runs
deterministic (CI, with real install paths, was always diagnostic).
With a diagnostic fixture: 2/2 passes, real pr-body read, Agent dispatch
with run_in_background: false, zero Skill-tool substitutions.

Prose: the foreground note now states the dispatch happens ONLY via the
Agent tool (invoking the target as a Skill is wrong even though it
appears in the skills list; inline FALLBACKs apply only after a
dispatched subagent has failed), and the Step 18 imperative carries the
never-the-Skill-tool clause at the decision point.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Garry Tan
2026-09-01 21:49:54 +00:00
co-authored by Claude Fable 5
parent 67c6eec8dc
commit bb16e4d1cd
9 changed files with 18 additions and 18 deletions
+1 -1
View File
@@ -4,7 +4,7 @@
**Dispatch this step as a subagent** using the Agent tool with `subagent_type: "general-purpose"`. The subagent runs the coverage audit in a fresh context window — the parent only sees the conclusion, not intermediate file reads. This is context-rot defense.
**Foreground required:** pass `run_in_background: false` on the Agent call — subagents run in the BACKGROUND by default since Claude Code v2.1.198. (Merely omitting the flag no longer produces a foreground run; it must be explicitly false.) Dispatch with the Agent tool itself — never substitute the Skill tool or inline execution at initial dispatch to "guarantee" blocking: the explicit flag already makes the Agent call block, and running the work inline forfeits the fresh-context isolation this dispatch exists for. The parent needs this audit's LAST-line JSON before continuing.
**Foreground required:** pass `run_in_background: false` on the Agent call — subagents run in the BACKGROUND by default since Claude Code v2.1.198. (Merely omitting the flag no longer produces a foreground run; it must be explicitly false.) The dispatch happens ONLY via the Agent tool: invoking the target as a Skill, or executing its workflow inline in your own context, is WRONG even though the skill may appear in your available-skills list — inline execution forfeits the fresh-context isolation this dispatch exists for, and the explicit flag already makes the Agent call block. (Where a step defines an inline FALLBACK, it applies only after a dispatched subagent has failed.) The parent needs this audit's LAST-line JSON before continuing.
**Subagent prompt:** Pass the following instructions to the subagent, with `<base>` substituted with the base branch: