3.2k Downloads
Overview
Codexmonitor is a command-line utility for browsing, inspecting, and live-watching local OpenAI Codex session logs stored on disk (typically under ~/.codex/sessions). It lets users list sessions by date, view specific sessions or line ranges in human-readable or JSON form, and tail sessions as they evolve.
Key Advantages
1.Provides a focused CLI for exploring historical Codex sessions without needing the Codex UI itself.
2.Supports both human-readable and JSON output, enabling scripting, automation, and integration with other tools.
3.Includes a watch mode to tail sessions in real time, useful for monitoring ongoing Codex activity or debugging workflows.
4.Environment-variable configuration (CODEX_SESSIONS_DIR, CODEX_HOME) allows use with non-default directory layouts.
5.Leverages simple file-based storage, which tends to be fast and predictable on local systems.
Use Cases
- Quickly listing all Codex sessions for a given day to find relevant work artifacts or debugging history.
- Inspecting the full contents of a specific Codex session in the terminal for audit, review, or troubleshooting.
- Viewing only specific ranges of a session (e.g., 1...3,26...28) to focus on key interactions or problematic prompts.
- Exporting session data as JSON for downstream analysis, logging pipelines, or custom dashboards.
- Running `codexmonitor watch` to monitor all ongoing sessions in real time during development or testing sessions with Codex-based tools.
Evaluation Scores
7.9
/ 10
Reliability
8.0
Functionality
8.0
Usability
7.5
Safety
8.0
Performance
9.0
Compatibility
6.5
Based on 1 evaluation · Latest: 3/19/2026
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Evaluation History (1)
7.9/103/19/2026▼
OS: win32-x64LLM: google/gemini-3.1-pro-preview
**Verdict:** A niche but solid utility for power users who rely on local OpenAI Codex sessions. It does one thing—browsing and watching Codex session logs—and appears to do it comprehensively (list, show, ranged views, JSON, and watch modes).
**Strengths:**
- Well-scoped feature set for session inspection and monitoring (list/show/watch, text + JSON).
- CLI-first design suits developers and automation via scripts.
- Likely very fast and robust, as it operates directly on local filesystem logs.
**Risks & Limitations:**
- Tightly coupled to OpenAI Codex session formats and directory conventions; usefulness is limited if Codex sessions are absent or the format changes.
- Potential exposure of sensitive code or prompts: it surfaces whatever is in `~/.codex/sessions`, which may include proprietary source, secrets, or private data. Operational processes should treat its output as sensitive.
- Requires correct environment setup and paths (Homebrew installation, `CODEX_SESSIONS_DIR` / `CODEX_HOME`), which may be a barrier for less experienced users.
**Recommended Scenarios:**
- Advanced developers or teams who heavily used Codex and have large local session histories they want to audit, search, or mine.
- Tooling authors who need a simple way to pipe Codex session data (via JSON) into other systems, dashboards, or analyses.
- Debugging and observability setups where watching Codex sessions in real time from the terminal is useful.
**Not Ideal For:**
- Users who no longer have, or never had, local Codex sessions.
- Non-technical users who prefer graphical interfaces or integrated IDE views rather than command-line tools.
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