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  "Readability": {
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    "Comments": 4,
    "Overall": 7,
    "Notes": "Strongest: traceability. Each route reads top to bottom: origin check, visitor, path_id, todo_exists, one inline SQL statement, finish_post, render_lists. Comments explain the non-obvious (Spinel subset, single-cursor shim, token-issuance check, BUILD_NOTE). Weakest: errors. Write paths (run_sql, add_todo, rename_todo, record_token) discard DB.step's result, so a failed INSERT or UPDATE silently returns a stale fragment; the JS catch-all reload hides failures too. Lesser points: parallel arrays with a `done` field of ints, generic run_sql with a magic `id \u003e 0` bind rule, layout/page/path_id filed under the Actions divider, and unexplained constants (18 and 19 character limits)."
  },
  "ReviewFindings": [
    "[correctness] `apps/spinel/app.rb:475` and `:527` — `strip` only removes ASCII whitespace. A title containing only U+00A0 or U+2003 creates a blank-looking todo, and editing to that value does not delete it. Apply Unicode whitespace trimming before the empty-title check.",
    "[correctness] `apps/spinel/patches/2-tep-bakeoff.patch:330` — URL decoding turns `%00` into a NUL inside a C string, which is then truncated when copied into Ruby. Posting `title=before%00after` silently stores `before`; editing with `title=%00after` deletes the todo. Preserve decoded string lengths so input cannot silently become a different title or action.",
    "[spec] `apps/spinel/Makefile:130` — `clean-deps` deletes only the local SQLite and tep artifacts. The arm64 build still links precompiled OpenSSL, zlib and zstd libraries from the shared toolchain root (`scripts/arm64-cc:21`), so the next build does not compile every third-party library from scratch as required. Build those dependencies into the app’s own cache and include them in `clean-deps`."
  ],
  "Notes": [
    "Its server process exited (status 0) 16 times during the load test, and Carloku restarted it each time; the edge answered 502 in between."
  ]
}