claude-print/notes/bf-3ag.md

Bead bf-3ag: Session struct and version resolution

Task Summary

Create src/session.rs with:

• SessionResult struct with transcript, claude_version, duration_ms
• run() function signature with all parameters
• Version resolution: Command::new(claude_bin).arg("--version").output()
• Add pub mod session to lib.rs
• Unit test test_version_resolution mocks claude --version output

Status: Already Completed

The work for this bead was completed in previous commits:

• 557a810 feat(session): implement Session struct and version resolution
• de4d914 test(session): fix version resolution test and add struct validation test

Re-verification: 2026-06-13

All acceptance criteria remain satisfied:

• ✅ session.rs compiles
• ✅ SessionResult struct with all required fields (transcript, claude_version, duration_ms)
• ✅ run() function with all parameters implemented
• ✅ Version resolution using Command::new(claude_bin).arg("--version").output()
• ✅ pub mod session in lib.rs
• ✅ Unit test test_version_resolution_with_mock_binary passes
• ✅ cargo test passes (4/4 session tests)

Verification

All requirements have been verified:

1. ✅ SessionResult struct - Lines 22-29 in src/session.rs

   • Contains transcript: TranscriptResult
   • Contains claude_version: String
   • Contains duration_ms: u64

2. ✅ run() function - Lines 55-248 in src/session.rs

   • Takes claude_bin: &Path
   • Takes claude_args: &[OsString]
   • Takes prompt: Vec<u8
   • Takes timeout_secs: Option<u64>
   • Returns Result<SessionResult>

3. ✅ Version resolution - Lines 251-268 in src/session.rs

   • Uses Command::new(claude_bin).arg("--version").output()
   • Parses stdout/stderr for version string
   • Returns trimmed first line

4. ✅ Module export - Line 10 in src/lib.rs

   • Contains pub mod session;

5. ✅ Unit tests pass - All 4 session tests pass:

   • test_resolve_claude_version_with_nonexistent_binary ✅
   • test_session_result_struct_has_required_fields ✅
   • test_resolve_claude_version_with_echo ✅
   • test_version_resolution_with_mock_binary ✅

Test Output

running 4 tests
test session::tests::test_resolve_claude_version_with_nonexistent_binary ... ok
test session::tests::test_session_result_struct_has_required_fields ... ok
test session::tests::test_resolve_claude_version_with_echo ... ok
test session::tests::test_version_resolution_with_mock_binary ... ok

test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured

Conclusion

The bead requirements are fully satisfied by the existing implementation. No additional code changes are required.