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Show the host mapper failure before an action plan exists - #327

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aruintelligence merged 6 commits into
mainfrom
codex/guarded-tool-mapper-preflight
Oct 13, 2026
Merged

aruintelligence merged 6 commits into
mainfrom
codex/guarded-tool-mapper-preflight

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Adds a fifteenth project-authored rehearsal case where the host resourceFor mapper mutates its canonical argument snapshot. The adapter rejects with a TypeError before creating a plan or dispatch receipt. The builder gives this exception a distinct HOST ERROR state, hook trace, metrics, shareable case URL, and host design guidance; the CLI and quickstart describe the same outcome.

Checks: node --test test/guarded-tool-rehearsal.test.js test/agent-start.test.js test/agent-start-assets.test.js; node pilots/action-boundary/guarded-tool-rehearsal.mjs --check; node scripts/refresh-agent-start-assets.mjs --check.

All outcomes are local fixture observations. No human approval, provider call, delivery evidence, or production safety claim is implied. An unknown receipt may follow a side effect and must not trigger a silent retry.

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aruintelligence merged commit 5988b86 into main Oct 13, 2026
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