Prevent Claude edit stalls from missing reads#39
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Claude Code rejects edits to existing files when the file has not been read in the current session. Surface that rule in the Claude playbook and inject a short UserPromptSubmit reminder only for claude-code sessions so Update/Edit/MultiEdit attempts read their target first instead of stalling mid-task. Constraint: Claude Code enforces read-before-edit outside Colony, so the fix must guide the agent before it plans edit tools. Rejected: Treat this as a Colony hook error | the failing message is emitted by Claude Code before PostToolUse can record an edit. Confidence: high Scope-risk: narrow Directive: Keep this reminder Claude-only; do not add it to Codex or other IDE contexts unless their edit tools need the same guard. Tested: pnpm --filter @colony/hooks test; pnpm --filter @colony/hooks build; pnpm exec biome check CLAUDE.md packages/hooks/src/handlers/user-prompt-submit.ts packages/hooks/test/runner.test.ts .changeset/claude-edit-read-guard.md Not-tested: pnpm --filter @colony/hooks typecheck is blocked by existing missing declaration for better-sqlite3 in @colony/storage.
NagyVikt
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