adversarial-plan-review

adversarial-plan-review is a command for Claude Code from mvpasarel/gh-copilot-plugin-cc. It costs 12 tokens per session (651 once invoked), scanned A, original, Apache-2.0.

A review command that challenges an implementation plan's assumptions, order, risks, and hidden dependencies.

In plain words
What is it for?
It is for stress-testing plans. It only reports the review and does not edit or repair the plan.
Why use it?
It helps reveal where a plan could fail in real-world execution before work begins.

Command for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: names the AskUserQuestion tool.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the copilot plugin — 3 skills, 12 commands, 1 agent, 3 hooks shipped together

Good fit It is for stress-testing plans. It only reports the review and does not edit or repair the plan.

Compare 6 commands from other repositories ↓
Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add mvpasarel/gh-copilot-plugin-cc
Claude Code
/plugin install copilot

Made for: Claude Code.

Or install copilot, the plugin that ships this one along with the rest of its 3 skills, 12 commands, 1 agent, 3 hooks.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for adversarial-plan-review

README.md
[![agentmods](https://agentmods.dev/badge/commands/mvpasarel/gh-copilot-plugin-cc/adversarial-plan-review/github.svg)](https://agentmods.dev/commands/mvpasarel/gh-copilot-plugin-cc/adversarial-plan-review)
Your own site
<a href="https://agentmods.dev/commands/mvpasarel/gh-copilot-plugin-cc/adversarial-plan-review"><img src="https://agentmods.dev/badge/commands/mvpasarel/gh-copilot-plugin-cc/adversarial-plan-review/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for adversarial-plan-review

Your own site · 80×15
<a href="https://agentmods.dev/commands/mvpasarel/gh-copilot-plugin-cc/adversarial-plan-review"><img src="https://agentmods.dev/badge/commands/mvpasarel/gh-copilot-plugin-cc/adversarial-plan-review.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 12 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 651 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00012 $0.00651
Opus 5 $0.00006 $0.00326
Sonnet 5 $0.00002 $0.00130
Haiku 4.5 $0.00001 $0.00065

Measured 10d ago against content hash 570df0ee315b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

adversarial-plan-review scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/copilot/commands/adversarial-plan-review.md · 58 lines

What it actually says

Run an adversarial review of an implementation plan via Copilot. Position it as a challenge review that questions the chosen approach, ordering, risk coverage, and hidden assumptions. It is not just a stricter pass over plan completeness.

Raw slash-command arguments: $ARGUMENTS

Core constraint:

  • This command is review-only.
  • Do not fix issues in the plan, apply patches, or suggest that you are about to make changes.
  • Your only job is to run the review and return Copilot's output verbatim to the user.
  • Keep the framing focused on whether the plan's assumptions are sound, what it depends on implicitly, and where it would fail under real-world execution.

Execution mode rules:

  • If the raw arguments include --background, do not ask. Run in a Claude background job.
  • If the raw arguments include --wait, do not ask. Run in the foreground.
  • Otherwise, estimate adversarial review effort:
    • Recommend waiting only when the plan is clearly tiny (1-3 steps, no significant risks mentioned).
    • In every other case, including unclear size, recommend background.
  • Use AskUserQuestion exactly once with two options, putting the recommended option first and suffixing its label with (Recommended):
    • Wait for results
    • Run in background

Argument handling:

  • Preserve the user's arguments exactly.
  • Plan content can be passed via --plan-file <path>, positional arguments, or stdin.
  • When --plan-file is provided, positional arguments become adversarial focus text.
  • When --plan-file is not provided, positional arguments are treated as plan content. Use --focus <angle> to specify the adversarial angle separately.
  • Do not strip --background or --wait yourself.
  • Do not weaken the adversarial framing or rewrite the user's focus text.

Foreground flow:

  • Run:
node "${CLAUDE_PLUGIN_ROOT}/scripts/copilot-companion.mjs" adversarial-plan-review "$ARGUMENTS"
  • Return the command stdout verbatim, exactly as-is.
  • Do not paraphrase, summarize, or add commentary before or after it.

Background flow:

  • Launch with Bash in the background:
Bash({
  command: `node "${CLAUDE_PLUGIN_ROOT}/scripts/copilot-companion.mjs" adversarial-plan-review "$ARGUMENTS"`,
  description: "Copilot adversarial plan review",
  run_in_background: true
})
  • Do not call BashOutput or wait for completion in this turn.
  • After launching the command, tell the user: "Copilot adversarial plan review started in the background. Check /copilot:status for progress."
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 10d ago First seen · 58 lines · 12 tokens per session scan A 570df0ee315b

Subscribe to this mod's changes

adversarial-plan-review is a command published in the GitHub repository mvpasarel/gh-copilot-plugin-cc (7 stars, last pushed 5mo ago), licensed Apache-2.0. It adds 12 tokens to every session and 651 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.