plan

A planning workflow for turning a software request into an actionable work plan. It can either ask questions first or create the plan directly when the request is detailed.

In plain words
What is it for?
It is for planning projects, choosing between approaches, gathering constraints, comparing options, and reviewing an existing plan.
Why use it?
It helps clarify unclear requirements and organize larger coding tasks before implementation begins.

Skill for Claude CodeCodex

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 skills/jmstar85/oh-my-githubcopilot/plan
Any agent
npx skills add jmstar85/oh-my-githubcopilot --skill plan
Clone the repo
git clone --depth 1 https://github.com/jmstar85/oh-my-githubcopilot

Made for: Claude Code, Codex.

Per session 33 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,034 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.

ModelPer sessionOnce invoked
Fable 5 $0.00033 $0.01034
Opus 5 $0.00016 $0.00517
Sonnet 5 $0.00007 $0.00207
Haiku 4.5 $0.00003 $0.00103

Measured 3d ago against content hash d673a79f596b, 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 3d 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.

.github/skills/plan/SKILL.md · 110 lines

How it starts

The opening of the file, as written. The whole thing — 110 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Plan

Creates comprehensive, actionable work plans through intelligent interaction. Auto-detects whether to interview (broad requests) or plan directly (detailed requests).

Modes

Mode Trigger Behavior
Interview Default for broad requests Interactive requirements gathering
Direct --direct, or detailed request Skip interview, generate plan directly
Consensus --consensus, "ralplan" Planner → Architect → Critic loop
Review --review Critic evaluation of existing plan

Interactive Hook Protocol

MANDATORY: Use vscode_askQuestions for ALL user-facing decision points in this skill (when available). If vscode_askQuestions is NOT available (e.g., Copilot CLI), present numbered options in markdown and ask the user to respond with a number or freeform text.

When to Fire Hooks

Trigger Point Question Type
Interview mode: each question round Scope/preference/constraint question with options
Interview mode: readiness check "Ready to generate plan?" gate
Consensus mode: plan trade-offs Present design options with pros/cons
Consensus mode: critic rejection Show rejection reasons, ask for direction
All modes: plan approval Final plan review before execution

Interview Mode (broad/vague requests)

  1. Classify request: broad triggers interview
  2. HOOK: Ask ONE focused question via vscode_askQuestions for preferences, scope, constraints
    • Provide 3-5 contextual options derived from codebase analysis
    • Always include freeform input (allowFreeformInput: true)
  3. Gather codebase facts via @explore BEFORE asking user
  4. Consult @analyst for hidden requirements
  5. HOOK: Readiness gate — ask user if ready to generate plan:
    header: "plan-readiness"
    question: "I've gathered enough context. Ready to generate the plan?"
    options: [
      { label: "Yes, generate the plan", recommended: true },
      { label: "I have more requirements to add" },
      { label: "Show me what you've gathered so far" }
    ]
    
  6. Create plan when user signals readiness

Read the full file on GitHub · 110 lines

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. 3d ago First seen · 110 lines · 33 tokens per session scan A d673a79f596b

Subscribe to this mod's changes

plan is a skill published in the GitHub repository jmstar85/oh-my-githubcopilot (153 stars, last pushed 3mo ago), licensed MIT. It adds 33 tokens to every session and 1,034 once invoked, about $0.0002 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 2026-08-30.

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