message-codex SKILL.md skillA
message-codex from heapy/kortex is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add heapy/kortex/message-codex@git:20260825.a3fae39Pins git:20260825.a3fae39 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- heapy/kortex
- Path
plugins/heapy/skills/message-codex/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260825.a3fae39, committed Aug 25, 2026
- Size
- 2,797 bytes
- Repository stars
- 7
- License
- Apache-2.0
Queue a message from Claude Code, another agent, or a script to an existing Codex session. Use when Claude needs to report back to Codex or the user asks to "send this to Codex", "tell another Codex session", "notify the Codex session", or "queue a message for Codex". Not for starting a separate Codex review or task; use call-codex for that. For messages to Claude sessions, use message-claude.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Message Codex Find the exact Codex session and queue it one plain-text message through Codex app-server. For the opposite direction, use [Message Claude](../message-claude/SKILL.md). If the target belongs to the current Codex agent tree and an inter-agent messaging tool is available, use that tool. Do not use the CLI to bypass a permission rule that denied it. The workflow below is for separate Codex sessions and external callers such as Claude Code or a script. ## Send a message 1. Check that this Codex CLI supports session messaging: ```sh codex queue --help ``` If `queue` is unavailable, report that the installed CLI does not support this workflow. Do not substitute `codex exec resume`: resuming a session is not the same as queueing a message to it. 2. Browse sessions on the shared local app-server daemon: ```sh codex agents --no-alt-screen ``` Open the candidate and run `/status` to copy its `Session` UUID, then exit that TUI. A preview helps recognize a session but is not an identifier. 3. Select the target by its exact session name or UUID. Prefer the UUID when names repeat, and never guess between multiple matches. …
Read the whole file at its exact version.
How to install
mdr add heapy/kortex/message-codex@sha256:0f4e2b2d15bde0ceThe line at the top of this page pins the label git:20260825.a3fae39, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_ihwt5kashvhryx7b)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Aug 25, 2026.
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (2797 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
heapy/kortex · 7 stars · license Apache-2.0 · pushed 2026-10-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ihwt5kashvhryx7b GET https://markdownregistry.com/api/v1/resolve?ref=heapy/kortex/message-codex GET https://markdownregistry.com/api/v1/blob/0f4e2b2d15bde0ce3731abfefdc0d2d5ebf6c848b0c0a9c8e24eedf67248e329
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.