plan

plan is a skill for Claude Code, Codex from drujensen/aiagent. It costs 32 tokens per session (472 once invoked), scanned A, original, MIT.

A workflow that turns an approved technical design into an ordered implementation plan with named files, dependencies, and testable acceptance criteria. It also includes the project's final quality checks.

In plain words
What is it for?
Use it to break a design into concrete Go development steps and finish with formatting, static checks, dependency cleanup, building, and tests.
Why use it?
It removes ambiguity about what to change and in what order, making the work easier to assign and verify.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents.

Good fit Use it to break a design into concrete Go development steps and finish with formatting, static checks, dependency cleanup, building, and tests.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/drujensen/aiagent/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 drujensen/aiagent --skill plan
Clone the repo
git clone --depth 1 https://github.com/drujensen/aiagent

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/drujensen/aiagent/plan/github.svg)](https://agentmods.dev/skills/drujensen/aiagent/plan)
Your own site
<a href="https://agentmods.dev/skills/drujensen/aiagent/plan"><img src="https://agentmods.dev/badge/skills/drujensen/aiagent/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/drujensen/aiagent/plan"><img src="https://agentmods.dev/badge/skills/drujensen/aiagent/plan.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 32 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 472 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 $0.00032 $0.00472
Opus 5.5 $0.00013 $0.00189
Sonnet 5.5 $0.00006 $0.00094
Haiku 4.5 $0.00003 $0.00047

Measured 4d ago against content hash 4d08043a2103, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 4d 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.

skills/plan/SKILL.md · 29 lines

What it actually says

Plan

You have been activated to turn an approved technical design into a concrete implementation plan. Your output should be specific enough that each step can be handed to a separate executor with no further clarification needed.

Instructions

  1. Break the design into ordered, numbered steps. Each step should name the exact file(s) it touches and what changes in them. Steps that can be executed independently of each other should be identifiable as such (they may later be dispatched to separate sub-agents in parallel).
  2. Define acceptance criteria per step or for the plan as a whole. Criteria must be testable - "add a test that does X and confirms Y", not "make sure it works."
  3. Include the QA gate. Every plan must end with running this project's standard QA workflow: go fmt ./..., go vet ./..., go mod tidy, go build ., go test ./.... A step is not complete until these pass.
  4. Note ordering dependencies. If step 3 cannot start until step 1 finishes, say so explicitly. Do not assume ordering is obvious.
  5. Keep scope tight. The plan should implement exactly what the design called for - nothing broader. If you notice the design implies unstated scope, flag it as an open question rather than silently expanding the plan.

Output

Produce a plan with these sections:

  • Steps - a numbered list, each naming its target file(s), what changes, and any ordering dependency on an earlier step
  • Acceptance criteria - testable, specific, tied to the steps above
  • QA gate - restating the standard fmt/vet/mod tidy/build/test workflow as the final step
  • Open questions - anything the design left ambiguous that this plan had to make an assumption about

This plan's steps are the natural input to task decomposition (see PlanService.DecomposeIntoTasks): each step, or each independent group of steps, becomes one dispatchable 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. 4d ago First seen · 29 lines · 32 tokens per session scan A 4d08043a2103

Subscribe to this mod's changes

plan is a skill published in the GitHub repository drujensen/aiagent (5 stars, last pushed 2mo ago), licensed MIT. It adds 32 tokens to every session and 472 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 2026-10-03.

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