plan

plan is a skill for Claude Code, Codex from midFang/ai-agent-skills-workflow. It costs 97 tokens per session (575 once invoked), scanned A, original, MIT.

A workspace skill that creates or updates a detailed implementation plan in a plan file.

In plain words
What is it for?
Use it before implementation when you need a concrete plan for a feature, bug fix, or other workspace change.
Why use it?
It turns a broad coding request into a clear path with the relevant files, modules, and integration points identified.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it before implementation when you need a concrete plan for a feature, bug fix, or other workspace change.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/midfang/ai-agent-skills-workflow/plan
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.

Any agent
npx skills add midFang/ai-agent-skills-workflow --skill plan
Clone the repo
git clone --depth 1 https://github.com/midFang/ai-agent-skills-workflow

Made for: Claude Code, Codex.

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 plan

README.md
[![agentmods](https://agentmods.dev/badge/skills/midfang/ai-agent-skills-workflow/plan/github.svg)](https://agentmods.dev/skills/midfang/ai-agent-skills-workflow/plan)
Your own site
<a href="https://agentmods.dev/skills/midfang/ai-agent-skills-workflow/plan"><img src="https://agentmods.dev/badge/skills/midfang/ai-agent-skills-workflow/plan/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 plan

Your own site · 80×15
<a href="https://agentmods.dev/skills/midfang/ai-agent-skills-workflow/plan"><img src="https://agentmods.dev/badge/skills/midfang/ai-agent-skills-workflow/plan.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 97 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 575 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 $0.00097 $0.00575
Opus 5 $0.00048 $0.00287
Sonnet 5 $0.00019 $0.00115
Haiku 4.5 $0.00010 $0.00057

Measured 8d ago against content hash cef60f381ed7, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, 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 8d 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.

plan/SKILL.md · 63 lines

What it actually says

Plan

Use this skill as the replacement for the deprecated custom prompt /prompts:plan.

Invocation

Preferred explicit trigger:

  • $plan 帮我设计用户登录模块的实现方案

Natural-language triggers:

  • 进入 Plan 模式
  • 先出执行计划
  • 帮我生成 plan 文件

Workflow

  1. Confirm the task and current workspace.
  2. Gather only the context needed to name concrete files, modules, or integration points.
    • Start with 5-8 targeted read-only tool calls.
    • Stop early once the implementation path is clear.
  3. Choose simple, medium, or complex based on scope and risk.
  4. If mcp__sequential-thinking__sequentialthinking is available and the task is more than trivial, use it to shape the plan.
  5. Create or update a plan file under the current workspace.
    • New plan: plan/YYYY-MM-DD_HH-mm-ss-<slug>.md
    • Existing plan: reuse the previous file when the user clearly says they want to adjust the earlier plan.
  6. The plan file frontmatter should include:
---
mode: plan
cwd: <current workspace>
task: <task summary>
complexity: <simple|medium|complex>
tool: mcp__sequential-thinking__sequentialthinking
total_thoughts: <final count>
created_at: <ISO8601 timestamp>
---
  1. The plan body should contain:
    • A brief task summary
    • A numbered execution plan
    • Risks and blockers
    • path:line references where they materially help implementation
  2. Reply in concise Chinese using this shape:
    • 🎯 任务
    • 📋 执行计划
    • 🧠 当前思考摘要
    • ⚠️ 风险与阻塞
    • 📎 Plan 文件

Defaults

  • Prefer writing a plan/*.md file instead of only chatting.
  • Keep the plan decision-complete so implementation can start without extra design decisions.
  • Do not implement the plan unless the user explicitly switches from planning to execution.
  • If file writes are blocked, return the full plan text plus the intended file path.
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. 8d ago First seen · 63 lines · 97 tokens per session scan A cef60f381ed7

Subscribe to this mod's changes

plan is a skill published in the GitHub repository midFang/ai-agent-skills-workflow (2 stars, last pushed 2mo ago), licensed MIT. It adds 97 tokens to every session and 575 once invoked, about $0.0005 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.

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