sparring SKILL.md skillA

sparring from nyxandro/sparring-skill is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add nyxandro/sparring-skill/sparring@v1.0.0

Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
nyxandro/sparring-skill
Path
sparring/SKILL.md
Versions recorded
6
Latest version
v1.0.0, committed Nov 5, 2026
First version recorded
May 29, 2026
Size
15,145 bytes
Repository stars
3
License
MIT

Use when the user says "sparring", "run sparring with Claude", "do sparring with Claude", "do sparring with GPT-5", "sparring with Codex", "sparring my plan with Claude", "discuss this approach with Codex", "get a second opinion through sparring", "give me the sparring transcript", "read the long sparring answer", or asks to leave a sparring session running. Runs a model-vs-model sparring flow through the bundled sparctl harness for planning, brainstorming, second opinions, code review…

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

# Sparring

Use this skill after it has been selected for a sparring request with another CLI agent. The skill turns that request into a concrete workflow through the bundled `sparring` harness.

Production rule: use `ask-session` with a unique temporary state file. The same command creates the provider-native session on the first turn and resumes it on later turns. Use tmux only when non-interactive CLI mode is unavailable or when the user explicitly wants a live attachable TUI session; do not expose tmux as a second normal workflow.

## Scope

After this skill is selected, use it only for sparring-style requests with another model or CLI agent. Do not use it for ordinary non-interactive shell commands where stdout alone is the requested result.

## Requirements

This skill expects:

- The bundled `bin/sparctl`, `lib/print-agent.sh`, and `lib/tmux-agent.sh` files from this skill folder.
- The requested opponent CLI installed, for example `claude` or `codex`.
- `timeout` from GNU coreutils for non-interactive CLI calls.
- `tmux` only when using explicit live TUI mode.

Resolve the harness path in this order:
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add nyxandro/sparring-skill/sparring@sha256:816ae1303a4652e8

The line at the top of this page pins the label v1.0.0, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_f4t7icwhcarypvt7.svg)](https://markdownregistry.com/a/art_f4t7icwhcarypvt7)

4 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 6 versions of this file, between May 29, 2026 and Nov 5, 2026, about one every 32 days.

versioncommittedcommitsizeaudit
v1.0.0 latest2026-11-05 f22acf4 15,145 BA view · diff
git:20260531.8b02bf02026-05-31 8b02bf0 15,116 BA view · diff
git:20260529.e6945ba2026-05-29 e6945ba 16,218 BA view · diff
git:20260529.640a80a2026-05-29 640a80a 14,092 BA view · diff
git:20260529.98a0b7d2026-05-29 98a0b7d 10,791 BA view · diff
git:20260529.4ebfa8c2026-05-29 4ebfa8c 10,618 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (15145 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

GitHub

nyxandro/sparring-skill · 3 stars · license MIT · pushed 2026-11-05 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_f4t7icwhcarypvt7
GET https://markdownregistry.com/api/v1/resolve?ref=nyxandro/sparring-skill/sparring
GET https://markdownregistry.com/api/v1/blob/816ae1303a4652e876e7725c435f1b10d3f7736cd70e4bbc4c710d45d9b45b16

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.

Other files named sparring

sparring SKILL.md skill
anantys-oss/koan · koan/skills/core/sparring/SKILL.md · Start a strategic sparring session
v1.0.0 · audit A · 48 stars

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