codex-desktop is an unofficial, community-maintained Linux distribution of OpenAI’s ChatGPT desktop application, packaged for several Linux formats and desktop environments. Linux users install it to access Chat, Work, and Codex through a desktop app built from the signed upstream Linux payload. Its catalogue skills, agents, instructions, and MCP integration extend workflows around the application.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add ilysenko/codex-desktop-linux --skill chronicle-skysightgit clone --depth 1 https://github.com/ilysenko/codex-desktop-linuxWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/ilysenko/codex-desktop-linux/chronicle-skysight)<a href="https://agentmods.dev/skills/ilysenko/codex-desktop-linux/chronicle-skysight"><img src="https://agentmods.dev/badge/skills/ilysenko/codex-desktop-linux/chronicle-skysight/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/ilysenko/codex-desktop-linux/chronicle-skysight"><img src="https://agentmods.dev/badge/skills/ilysenko/codex-desktop-linux/chronicle-skysight.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00033 | $0.00153 |
| Opus 5.5 | $0.00013 | $0.00061 |
| Sonnet 5.5 | $0.00007 | $0.00031 |
| Haiku 4.5 | $0.00003 | $0.00015 |
Grade A, and why
chronicle-skysight scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Chronicle / Skysight
Call skysight_status first. Status and doctor calls are passive and must not
start capture. Call skysight_snapshot for one bounded activity snapshot.
Start continuous capture with skysight_start only after the user explicitly
requests it. Honor exclusions and use skysight_pause, skysight_resume, or
skysight_stop as requested. Chronicle-compatible resources stay local under
${CODEX_HOME:-$HOME/.codex}/memories/extensions/chronicle/resources.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 14 lines · 33 tokens per session scan A 84f31efe5e7d
chronicle-skysight is a skill published in the GitHub repository ilysenko/codex-desktop-linux (3,910 stars, last pushed today), licensed MIT. It adds 33 tokens to every session and 153 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
context-exclusion
Maintain .agent-no-read.md markers for approved generated directories using deterministic scripts. Use when configuring generated-code context exclusion or restoring markers after regeneration, not for ordinary ignore rules or OS permissions.
context-engineering
A project documentation framework that records a project's goals, requirements, roadmap, and current state in separate files. It also keeps those documents within set size limits for an AI coding agent.
establishing-project-context
Use when the user asks to establish shared project language, or project work exposes a conflicting, renamed, or deprecated domain term that needs active semantic modeling. Routine small tasks stay on the fast path.
error-experience-library
An error knowledge base that stores recurring error patterns, their causes, and the fixes that worked. It can search past entries and track whether each suggested fix succeeded.
session-compaction-and-restore
Use when reasoning about what survives compaction/context-loss/restart/seat-refresh, designing a high-fidelity restore packet, or distinguishing native runtime resume vs fork vs artifact-backed mental-model rebuild. Covers the 4 failure modes that prevent honest restore (compacted seat drops hot potato; restore packet…
report
Writes the session final report to a file, then prints only the path and a one-line summary. Fires when the prompt contains "Report per memstack:report", and also when the prompt begins with a standing trigger configured through MEMSTACKREPORTONTASKPROMPTS or MEMSTACKREPORTTRIGGERS. Dormant otherwise.