Automation API (MCP) accuracy, specifically tool metadata regarding file system operations.
Raw Developer Origin & Technical Request
GitHub Issue
Oct 7, 2026
## Summary
`doc_export_data`, `accessibility_report`, and `image_save` advertise `readOnlyHint: true` through MCP `tools/list`, but each writes to its required `path` and replaces an existing file there. All three also advertise `destructiveHint: false`. This contradicts the tool table's definitions of read-only and destructive behavior and gives clients incorrect information about filesystem side effects.
## Runtime or environment
- Latest published release tested: `v0.2.1`, tag commit `dcb00238896e418b357e6dd777ee35bad36f0b97`, using `printcraft-cli-0.2.1-macos-universal.zip`. Its SHA-256 was `bda65829033916c5de5a7ddc0763437f8db2e8792ee43c8dc2676434acb3d495`, matching the release's `SHA256SUMS.txt`. The extracted binary's SHA-256 was `b7783b596870ed5a326f29456d4647382d2e1e4d7b7ffe75ded192cd15b86995` and `--version` reported `printcraft-cli 0.2.1`.
- Host: macOS 27.0.1, Darwin 27.0.0, arm64. Tests used only synthetic data in a disposable directory.
- Current default branch inspected: `main` at `1c78ff479ce5cf5cbcf7af5100378c9311b95162`. The three annotations, MCP mapping, file-writing handlers, and atomic-write helper remain unchanged from the release. This branch was inspected from source, not built or executed. The intervening engine changes concern form check styles and a catalog entry, not these handlers.
## Steps to reproduce
Run the following Python script in a new disposable directory with the tested release's `printcraft-cli` on `PATH`. It creates an original on...
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