Interactive Claude sessions: transcript not persisted at reported path → session metrics silently empty (0 records)

[8nevil8]

Description

For interactive Claude Code sessions launched via codemie-claude, Claude Code (2.1.218) does not write its session transcript JSONL to ~/.claude/projects/<cwd>/<session>.jsonl — the project dir contains only a memory/ subdir. However, Claude's SessionStart/UserPromptSubmit hook payload still reports that transcript_path, and CodeMie's correlation marks it status: "matched". At Stop/SessionEnd, the metrics processor reads the absent path, reports "0 records processed", and writes no sessions/*_metrics.jsonl. Session metrics are silently lost, and correlation reports matched for a file that doesn't exist — masking the gap.

Headless --task mode persists the transcript normally, so its metrics work.

Steps to Reproduce

1. Run the agent suite: npm run test:integration:agent (or just TC-024 in tests/integration/agent-model.test.ts).
2. TC-024 drives codemie-claude interactively via node-pty, does a /model switch + a prompt, then /exit.
3. Observe the session's logs/debug-*.log: hooks fire, but both Stop and SessionEnd log Session processing complete: 0 records processed.
4. ~/.claude/projects/<cwd-hash>/ contains only memory/ — no .jsonl.

Expected Behavior

Interactive-session metrics are recorded (a sessions/*_metrics.jsonl is written with the model used), as with --task mode.

Actual Behavior

No metrics file is produced; getLatestMetricsRecord throws No metrics files found. The transcript at the correlated path never exists on disk.

Investigation (ruled out)

Temp vs persistent cwd · workspace trust · the /model switch · provider (ai-run-sso vs anthropic-subscription) · session duration / turn count (4 turns / 75s) · flush-on-clean-exit. A "normally" launched interactive codemie-claude session (same claude --plugin-dir … invocation) does persist its transcript, so the trigger appears specific to how a programmatically-driven (node-pty) interactive session is handled by Claude Code — i.e. likely an upstream transcript-persistence behavior, not CodeMie logic.

Partial mitigation (already landed)

src/cli/commands/hook.ts now logs an explicit WARN when the reported transcript path is missing (or empty) at Stop/SessionEnd, instead of silently reporting "0 records processed", so the gap is diagnosable.

Suggested follow-ups

• Don't mark correlation matched for a transcript path that doesn't exist on disk.
• Bisect Claude Code versions to confirm where interactive-PTY transcript persistence changed.
• Adjust TC-024 to assert against the API-sent session metric, or drive the model check via --task.

Environment

Field	Value
OS	Darwin 25.5.0 arm64
Node.js	v26.5.0
CodeMie CLI	0.15.0
Claude Code	2.1.218
Shell / Terminal	zsh / ghostty