plan

plan is a skill for Claude Code from joao-aires/agent-skills-public. It costs 39 tokens per session (547 once invoked), scanned A, original, MIT.

An implementation-planning workflow that turns agreed work into ordered steps based on the repository, dependencies, verification, and release effects. It produces a plan rather than implementing or deploying the change.

In plain words
What is it for?
Use it to plan features and refactors, inspect affected interfaces and architecture, include migrations and compatibility work, choose focused tests, and record assumptions or blockers.
Why use it?
It reduces missed dependencies, incompatible changes, weak test coverage, and unclear recovery or delivery steps.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter.

Good fit Use it to plan features and refactors, inspect affected interfaces and architecture, include migrations and compatibility work, choose focused tests, and record assumptions or blockers.

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

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 plan

README.md
[![agentmods](https://agentmods.dev/badge/skills/joao-aires/agent-skills-public/plan/github.svg)](https://agentmods.dev/skills/joao-aires/agent-skills-public/plan)
Your own site
<a href="https://agentmods.dev/skills/joao-aires/agent-skills-public/plan"><img src="https://agentmods.dev/badge/skills/joao-aires/agent-skills-public/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/joao-aires/agent-skills-public/plan"><img src="https://agentmods.dev/badge/skills/joao-aires/agent-skills-public/plan.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 39 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 547 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 $0.00039 $0.00547
Opus 5.5 $0.00016 $0.00219
Sonnet 5.5 $0.00008 $0.00109
Haiku 4.5 $0.00004 $0.00055

Measured yesterday against content hash 9ea2c690de3e, 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 yesterday.

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.

plugins/development/skills/plan/SKILL.md · 43 lines

How it starts

The opening of the file, as written. The whole thing — 43 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Plan

Read task guidance. Reuse existing plans and commands; scale the plan to the agreed work.

Establish the planning basis

  • Agree on the outcome and completion evidence. Refine material gaps before assuming scope.
  • Inspect affected architecture and contracts. Use system-design after product refinement or when the feature changes consequential architecture, before dependent planning or implementation.
  • Read project conventions for existing constraints and delivery guidance for acceptance and verification.
  • Load optional stack/domain guidance selected by task guidance only when relevant and available. Use service-contract design expertise for changed service behavior.

Order the work by its dependencies

Start from a useful observable result and work backward to its prerequisites. A good increment joins enough of the application to prove something meaningful: a caller can exercise the operation, the necessary data changes occur, and a check can distinguish success from failure. Organizing the plan only by folders or technical layers can postpone discovery that those parts do not work together.

Put uncertain or constraining work early enough that it can change the remaining plan. For each increment, name the behavior it delivers, the important prerequisite and the evidence needed before moving on. Reuse the project's technical conventions to choose implementation detail. Include the consequences that apply:

Affected concern Include in the plan
UI or interaction behavior UI/behavior design before dependent implementation
Persistence or consumers Migration and compatibility work
Acceptance and regression risk Focused tests and their evidence
Delivery and failure Release and recovery consequences

Return an executable plan

Return steps in the order they can actually be carried out. Make it clear which work is ready, which depends on a decision, and which can proceed independently. For changes to persisted data or deployed consumers, explain the order in which old and new versions can coexist and when cleanup becomes safe.

Read the full file on GitHub · 43 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. yesterday Changed · +24 lines 9ea2c690de3e
  2. 2d ago Changed 22c16231f481
  3. 5d ago Changed 99a9077fa540
  4. 7d ago First seen · 19 lines · 39 tokens per session scan A 1fd5f7a29354

Subscribe to this mod's changes

plan is a skill published in the GitHub repository joao-aires/agent-skills-public (2 stars, last pushed yesterday), licensed MIT. It adds 39 tokens to every session and 547 once invoked, about $0.0002 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 2026-10-15.

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