A command that creates a step-by-step plan for implementing a feature or code change. It only plans and returns the planning tool's result; it does not modify files.

Use it to request an implementation plan, choosing whether the planning work should run in the background or wait in the foreground.

It separates deciding what to do from making the changes, which helps clarify larger tasks before implementation begins.

plan — Command for coding agents by mvpasarel: A command that creates a step-by-step plan for implementing…

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods

npx agentmods add commands/mvpasarel/gh-copilot-plugin-cc/plan

Clone the repo

git clone --depth 1 https://github.com/mvpasarel/gh-copilot-plugin-cc

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.

README.md

[![agentmods](https://agentmods.dev/badge/commands/mvpasarel/gh-copilot-plugin-cc/plan.svg)](https://agentmods.dev/commands/mvpasarel/gh-copilot-plugin-cc/plan)

Your own site

<a href="https://agentmods.dev/commands/mvpasarel/gh-copilot-plugin-cc/plan"><img src="https://agentmods.dev/badge/commands/mvpasarel/gh-copilot-plugin-cc/plan.svg" alt="Measured on agentmods" height="20"></a>

Per session 9 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 506 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. Scan, not verified.

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.

Model	Per session	Once invoked
Fable 5	$0.00009	$0.00506
Opus 5	$0.00005	$0.00253
Sonnet 5	$0.00002	$0.00101
Haiku 4.5	$0.00001	$0.00051

Measured 5d ago against content hash 19fa479d0709, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

plan 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 5d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

task — 86% identical, 29 lines differ

plugins/copilot/commands/plan.md · 52 lines

What it actually says

Generate a step-by-step implementation plan via Copilot.

Raw slash-command arguments: $ARGUMENTS

Core constraint:

This command is planning-only.
Do not implement anything, apply patches, or suggest that you are about to make changes.
Your only job is to run the plan command and return Copilot's output verbatim to the user.

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, default recommendation is background for non-trivial requests.
- Recommend foreground only for clearly simple, single-sentence requests where the plan will be small.
- In every other case, recommend background.
Use AskUserQuestion exactly once with two options, putting the recommended option first and suffixing its label with (Recommended):
- Run in background
- Wait for results

Argument handling:

Preserve the user's arguments exactly.
Do not strip --background or --wait yourself.
The companion script parses --background, but Claude Code's Bash(..., run_in_background: true) is what actually detaches the run.

Foreground flow:

Run:

node "${CLAUDE_PLUGIN_ROOT}/scripts/copilot-companion.mjs" plan "$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 "${CLAUDE_PLUGIN_ROOT}/scripts/copilot-companion.mjs" plan "$ARGUMENTS"`,
  description: "Copilot plan",
  run_in_background: true
})

Do not call BashOutput or wait for completion in this turn.
After launching the command, tell the user: "Copilot plan 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.

5d ago First seen · 52 lines · 9 tokens per session scan A 19fa479d0709

Subscribe to this mod's changes

plan is a command published in the GitHub repository mvpasarel/gh-copilot-plugin-cc (7 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 9 tokens to every session and 506 once invoked, about $0.0000 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.

Planning

plan

Getting it into your agent

Wrote this? Show the measurements

What it costs to keep this loaded

Grade A, and why

Nothing flagged

Copies of this mod

What it actually says

What this file has done since we first saw it

Other commands, from other repositories

checklist

clarify

specify

converge

implement

analyze