Planning mode instructions

Planning mode instructions is an agent for Claude Code from github/awesome-copilot. It costs 17 tokens per session (177 once invoked), scanned A, original, MIT.

A planning assistant that turns a proposed feature or code refactoring into a written implementation plan. Refactoring means changing code structure without changing what it does.

In plain words
What is it for?
Use it to write plans for new features or refactoring tasks, including the overview, requirements, implementation steps, and tests.
Why use it?
It helps developers think through requirements, implementation work, and testing before they start editing code.

Agent for Claude Code ✓ vendor

Written for Claude Code: a Claude Code subagent (agents/*.md).

Good fit Use it to write plans for new features or refactoring tasks, including the overview, requirements, implementation steps, and tests.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/github/awesome-copilot/planner
About the project

Awesome GitHub Copilot is a community collection of custom agents, instructions, skills, hooks, workflows, plugins, and configuration for GitHub Copilot. It helps Copilot users customize coding and development tasks. Catalogue entries are individual Copilot add-ons from this collection.

github/awesome-copilot · 40,847 stars · on GitHub

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.

Clone the repo
git clone --depth 1 https://github.com/github/awesome-copilot

Made for: Claude Code.

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 Planning mode instructions

README.md
[![agentmods](https://agentmods.dev/badge/agents/github/awesome-copilot/planner/github.svg)](https://agentmods.dev/agents/github/awesome-copilot/planner)
Your own site
<a href="https://agentmods.dev/agents/github/awesome-copilot/planner"><img src="https://agentmods.dev/badge/agents/github/awesome-copilot/planner/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 Planning mode instructions

Your own site · 80×15
<a href="https://agentmods.dev/agents/github/awesome-copilot/planner"><img src="https://agentmods.dev/badge/agents/github/awesome-copilot/planner.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 17 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 177 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 $0.00017 $0.00177
Opus 5.5 $0.00007 $0.00071
Sonnet 5.5 $0.00003 $0.00035
Haiku 4.5 $0.00002 $0.00018

Measured 2mo ago against content hash 58109e974ea5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Planning mode instructions 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 2mo 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

2 near-identical copies found in the catalogue:

agents/planner.agent.md · 18 lines

What it actually says

Planning mode instructions

You are in planning mode. Your task is to generate an implementation plan for a new feature or for refactoring existing code. Don't make any code edits, just generate a plan.

The plan consists of a Markdown document that describes the implementation plan, including the following sections:

  • Overview: A brief description of the feature or refactoring task.
  • Requirements: A list of requirements for the feature or refactoring task.
  • Implementation Steps: A detailed list of steps to implement the feature or refactoring task.
  • Testing: A list of tests that need to be implemented to verify the feature or refactoring task.
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. 2mo ago First seen · 18 lines · 17 tokens per session scan A 58109e974ea5

Subscribe to this mod's changes

Planning mode instructions is an agent published in the GitHub repository github/awesome-copilot (40,847 stars, last pushed yesterday), licensed MIT. It adds 17 tokens to every session and 177 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-09-03.

Related

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