Codex Session History

List and inspect local Codex session history by reading ~/.codex/session_index.jsonl, ~/.codex/sessions/, and ~/.codex/archived_sessions/. Default to unarchived sessions in ~/.codex/sessions/. Use when users ask what Codex sessions exist, want each session's id or title, need to know which project or workspace a session belongs to, or want to filter sessions by project name, session id, active versus archived status, or a local time window such as "today from 11:00 to 12:00".

Overview

Use this skill to enumerate local Codex sessions and map each session to its id, title, project, and workspace path. Prefer the bundled script so the output stays consistent and works even when session_index.jsonl is incomplete.

Workflow

1. Run the script to collect unarchived sessions by default.
2. Use session_meta.payload.id as the canonical session id.
3. Use session_meta.payload.cwd as the workspace anchor.
4. Derive the project from the Git root when possible; otherwise fall back to cwd.
5. Use session_index.jsonl only as enrichment for thread_name and updated_at.
6. Convert stored UTC timestamps into local time before display and time-window filtering.
7. If no thread_name is available, fall back to the first user message summary.

Commands

List recent sessions:

bash

python3 scripts/list_codex_sessions.py

List active and archived sessions together:

bash

python3 scripts/list_codex_sessions.py --source all

List more rows:

bash

python3 scripts/list_codex_sessions.py --limit 50

Filter by project:

bash

python3 scripts/list_codex_sessions.py --project PlayGround

Filter by a local time window on today's date:

bash

python3 scripts/list_codex_sessions.py --from 11:00 --to 12:00

Filter by a local time window on a specific date:

bash

python3 scripts/list_codex_sessions.py --date 2026-03-19 --from 11:00 --to 12:00

Inspect one session id:

bash

python3 scripts/list_codex_sessions.py --session-id 019ce206-aa11-7c81-a65a-fece3708ecf4 --details

Only show archived sessions:

bash

python3 scripts/list_codex_sessions.py --source archived

Return JSON:

bash

python3 scripts/list_codex_sessions.py --json

Output

Default table columns:

• id
• project
• started_at
• updated_at
• source
• title

With --details, also show:

• matched_from
• matched_to
• cwd
• project_path
• started_at
• session_file
• first_user_message

Notes

• Prefer the script over ad hoc rg because session_index.jsonl may be incomplete.
• Treat the session file itself as the source of truth for id and cwd.
• started_at and updated_at are displayed in local time, not raw Z time.
• Time-window filters match actual session events inside the requested interval, not only broad session span coverage.
• If a workspace no longer exists on disk, still report the recorded cwd.
• When the user only asks for "有哪些会话、id 是什么、属于哪个项目", the default table is enough.

Script

Use:

bash

python3 scripts/list_codex_sessions.py --help