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ctx-watch

v0.3.0

Context watermark monitoring for Codex. Reads the token_count events in your rollouts to tell you — and the agent — when a session has grown too large to stay fast, and whether to throttle or hand off.

Codex1 Skill

By juewLicense: MIT2 GitHub starsUpdated last month

Directory evidence

Runtimes
Codex
Parsed components
1 skill or MCP entry
Source updated
Sep 3, 2026
Manifest status
Canonical path parsed

The directory validates manifest shape and source location. It does not execute the plugin or provide a security endorsement. Review the indexing methodology →

Install ctx-watch for Codex

Installs for the current user
codex plugin marketplace add juew/ctx-watch
codex plugin marketplace upgrade ctx-watch
codex plugin add ctx-watch@ctx-watch

Paste and run these commands in a terminal with Codex. They add and refresh the ctx-watch catalog, then install this plugin.

Compatibility: the page URL and API slug “ctx-watch-2” remain stable.

  • Codex: ctx-watch-2@agent-plugin-marketplace → ctx-watch@ctx-watch

The installer fetches third-party code from the source repository shown on this page. This directory validates manifest structure and source location, but does not perform a security audit; review the manifest, components, and source before installing.

Get the source manually
git clone https://github.com/juew/ctx-watch

Clone the source repository, then follow its setup instructions to add the plugin to a compatible client. The plugin root is codex/plugins/ctx-watch/.

Plugin files

codex/plugins/ctx-watch/
├── .codex-plugin/plugin.json
└── skills/ctx-watch/SKILL.md

Included Skills1

ctx-watchskills/ctx-watch/SKILL.md

Use when the user asks about context size, token burn, plan usage, whether a session should be wrapped up, or 看上下文水位 / 水位 / token 消耗 / 是不是该收口了; when a session feels slow; or when deciding whether to keep going or start fresh.

Plugin manifests1

codex/plugins/ctx-watch/.codex-plugin/plugin.json
{
  "name": "ctx-watch",
  "version": "0.3.0",
  "description": "Context watermark monitoring for Codex. Reads the token_count events in your rollouts to tell you — and the agent — when a session has grown too large to stay fast, and whether to throttle or hand off.",
  "author": {
    "name": "juew",
    "url": "https://github.com/juew"
  },
  "homepage": "https://github.com/juew/ctx-watch",
  "repository": "https://github.com/juew/ctx-watch",
  "license": "MIT",
  "keywords": [
    "context",
    "token-usage",
    "performance",
    "handoff"
  ],
  "skills": "./skills/",
  "interface": {
    "displayName": "ctx-watch",
    "shortDescription": "Monitor Codex context watermarks",
    "longDescription": "Automatically keeps Codex aware of context-budget policy and reports when active sessions should throttle growth or prepare a clean handoff.",
    "developerName": "juew",
    "category": "Developer Tools",
    "capabilities": [
      "Interactive",
      "Read"
    ],
    "websiteURL": "https://github.com/juew/ctx-watch",
    "privacyPolicyURL": "https://docs.github.com/en/site-policy/privacy-policies/github-general-privacy-statement",
    "termsOfServiceURL": "https://docs.github.com/en/site-policy/github-terms/github-terms-of-service",
    "defaultPrompt": [
      "Check this Codex session's context watermark."
    ]
  }
}

For maintainers

If you maintain this plugin, link to this source-backed listing from your README so users can review its manifest and indexed components.

[ctx-watch on Agent Plugins Marketplace](https://pluginsmp.com/plugins/ctx-watch-2)