access SKILL.md skillA
access from zekker6/claude-code-channel-matrix is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add zekker6/claude-code-channel-matrix/access@git:20260320.4cfacc0Pins git:20260320.4cfacc0 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- zekker6/claude-code-channel-matrix
- Path
plugins/matrix-channel/skills/access/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260320.4cfacc0, committed Mar 20, 2026
- Size
- 1,558 bytes
- Repository stars
- 5
- License
- none declared
Manage the Matrix channel sender allowlist. Use when the user wants to add, remove, or list allowed Matrix users.
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
# Manage Matrix Access Control
Manage which Matrix users can send messages to Claude through this channel.
## Usage
Parse the subcommand and arguments from "$ARGUMENTS":
- `/matrix:access add <user_id>` — Add a Matrix user ID to the allowlist
- `/matrix:access remove <user_id>` — Remove a Matrix user ID from the allowlist
- `/matrix:access list` — Show the current allowlist
## Access File
The allowlist is stored at `~/.claude/channels/matrix/access.json` with this format:
```json
{
"allowedUsers": ["@user:example.com"],
"ackReaction": "👀"
}
```
## Steps
### For `add`:
1. Read the existing `access.json` (or start with `{"allowedUsers": [], "ackReaction": "👀"}` if it doesn't exist)
2. Add the user ID to `allowedUsers` if not already present
3. Write the updated file back
4. Confirm the user was added
### For `remove`:
1. Read the existing `access.json`
2. Remove the user ID from `allowedUsers`
3. Write the updated file back
4. Confirm the user was removed
### For `list`:
1. Read the existing `access.json`
2. Display the list of allowed users and the current ack reaction setting
### Tools
Use `jq` to read and modify the JSON file. Example for adding a user:
```bash
…Read the whole file at its exact version.
How to install
mdr add zekker6/claude-code-channel-matrix/access@sha256:020b61bff2b9e24dThe line at the top of this page pins the label git:20260320.4cfacc0, 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_5ulboqylr7kcwcao)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Mar 20, 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 (1558 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
zekker6/claude-code-channel-matrix · 5 stars · license none declared · pushed 2026-10-12 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_5ulboqylr7kcwcao GET https://markdownregistry.com/api/v1/resolve?ref=zekker6/claude-code-channel-matrix/access GET https://markdownregistry.com/api/v1/blob/020b61bff2b9e24d0cec25c4ba346324301373ca436cc77b7f6fe89b3bb63900
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.
More from zekker6/claude-code-channel-matrix
Every file in zekker6/claude-code-channel-matrix