ctx

v2.2.7

Fast local search and 'git blame' for agent sessions.

CodexClaude CodeAgent Plugins1 Skill

By ctx engineering incLicense: Apache-2.01.1k GitHub starsUpdated 1 hour ago

Directory evidence

Runtimes: Codex, Claude Code, and Agent Plugins
Parsed components: 1 skill or MCP entry
Source updated: Oct 2, 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 for Codex and Claude Code

Installs for the current user

codex plugin marketplace add ctxrs/ctx
codex plugin marketplace upgrade ctx
codex plugin add ctx@ctx

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

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

Codex: ctx@agent-plugin-marketplace → ctx@ctx

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/ctxrs/ctx

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

Plugin files

plugins/ctx/

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

Included Skills1

ctxskills/ctx/SKILL.md

Use ctx as working memory for prior agent work. Before starting or continuing work in an unfamiliar area, resuming earlier work, or revisiting an investigation, search prior sessions to ground yourself in earlier context. Use ctx blame to trace a line, file, commit, or PR to the agent session that produced it. Use when prior decisions, constraints, attempts, tool calls, transcript evidence, or code provenance may matter. Use ctx graph queries on indexed projects to follow calls and dependencies and understand what a change might affect.

Plugin manifests3

plugins/ctx/.codex-plugin/plugin.json

{
  "name": "ctx",
  "version": "2.2.7",
  "description": "Fast local search and 'git blame' for agent sessions.",
  "author": {
    "name": "ctx engineering inc",
    "url": "https://ctx.rs"
  },
  "homepage": "https://ctx.rs",
  "repository": "https://github.com/ctxrs/ctx",
  "license": "Apache-2.0",
  "keywords": [
    "ctx",
    "agent-sessions",
    "agent-history",
    "transcripts",
    "local-search",
    "code-provenance"
  ],
  "skills": "./skills/",
  "interface": {
    "displayName": "ctx",
    "shortDescription": "Fast local search and 'git blame' for agent sessions.",
    "longDescription": "ctx searches messages and tool calls in your past agent sessions. Its included blame command traces a line, file, commit, or PR back to the original agent session, with citations.",
    "developerName": "ctx engineering inc",
    "category": "Developer Tools",
    "capabilities": [
      "Read"
    ],
    "websiteURL": "https://ctx.rs",
    "defaultPrompt": [
      "Search my past agent sessions for context relevant to this task.",
      "Use ctx blame to find the agent session that produced this code."
    ]
  }
}

plugins/ctx/.claude-plugin/plugin.json

{
  "name": "ctx",
  "displayName": "ctx",
  "version": "2.2.7",
  "description": "Fast local search and 'git blame' for agent sessions.",
  "author": {
    "name": "ctx engineering inc",
    "url": "https://ctx.rs"
  },
  "homepage": "https://ctx.rs",
  "repository": "https://github.com/ctxrs/ctx",
  "license": "Apache-2.0",
  "keywords": [
    "ctx",
    "agent-sessions",
    "agent-history",
    "transcripts",
    "local-search",
    "code-provenance"
  ],
  "skills": "./skills/"
}

plugins/ctx/plugin.json

{
  "$schema": "https://agent-plugins.org/schemas/1.0.0/plugin.schema.json",
  "name": "ctx",
  "version": "2.2.7",
  "description": "Fast local search and 'git blame' for agent sessions.",
  "author": {
    "name": "ctx engineering inc",
    "url": "https://ctx.rs"
  },
  "homepage": "https://ctx.rs",
  "repository": "https://github.com/ctxrs/ctx",
  "license": "Apache-2.0",
  "keywords": [
    "ctx",
    "agent-sessions",
    "agent-history",
    "transcripts",
    "local-search",
    "code-provenance"
  ]
}

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 on Agent Plugins Marketplace](https://pluginsmp.com/plugins/ctx)