phone-a-friend SKILL.md skillA
phone-a-friend from reidemeister94/development-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add reidemeister94/development-skills/phone-a-friend@git:20260919.a9f7da5Pins git:20260919.a9f7da5 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- reidemeister94/development-skills
- Path
skills/phone-a-friend/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260919.a9f7da5, committed Sep 19, 2026
- Size
- 3,579 bytes
- Repository stars
- 12
- License
- MIT
Get an independent second opinion on a plan or code change from the other CLI, Claude Code or Codex.
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
# Phone a friend Get a second opinion from the other model family before sharing the first reviewer's conclusions. Use one rebuttal round to resolve findings with evidence. Escalate unresolved material disagreements; never run a third round. ## Scope and partner Plan mode reviews the given plan path, or the active task plan. Review mode reviews the requested scope, or current branch changes. Ask when the mode is ambiguous. If `PHONE_A_FRIEND=1` is set, refuse because this session is already the partner. Detect the host and call the other CLI without interactive permission prompts: - From Claude Code: `PHONE_A_FRIEND=1 codex exec -c model_reasoning_effort="xhigh" --sandbox read-only --cd <repo> --json --output-last-message <file> "<packet>"`. Resume with the same environment, reasoning, sandbox, and repository flags before `resume <session-id> "<rebuttal>"`. - From Codex: `PHONE_A_FRIEND=1 claude -p --permission-mode plan --effort xhigh --output-format json "<packet>"`. Resume with the same environment, permission mode, effort, and `--resume <session-id>` flags. Use the configured high-capability model and highest supported reasoning effort. …
Read the whole file at its exact version.
How to install
mdr add reidemeister94/development-skills/phone-a-friend@sha256:ea309cc6da84eb3eThe line at the top of this page pins the label git:20260919.a9f7da5, 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_sodi5iyco6okkj7z)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 19, 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 (3579 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
reidemeister94/development-skills · 12 stars · license MIT · pushed 2026-10-31 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_sodi5iyco6okkj7z GET https://markdownregistry.com/api/v1/resolve?ref=reidemeister94/development-skills/phone-a-friend GET https://markdownregistry.com/api/v1/blob/ea309cc6da84eb3e50851289b2bc8be0efb67340e5e50abc1c69a4e1926434b5
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.