outlit-sdk: Skill for Claude Code

.agents/skills/writing-plans/SKILL.md

writing-plans is a skill for Claude Code, Codex from OutlitAI/outlit-sdk. It costs 37 tokens per session (1,217 once invoked), scanned A, original, Apache-2.0.

A guide for writing implementation plans for software work. It identifies when a plan is needed, such as for migrations, architecture changes, or multi-stage projects.

In plain words
What is it for?
Use it to plan cross-component changes, public API or security work, migrations, deployments, and other long-running tasks.
Why use it?
It helps break risky or complex work into ordered steps before code changes begin, making dependencies and verification needs explicit.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents; installed under .agents/ (shared by several agents).

This is OutlitAI/outlit-sdk's own configuration. It tells Claude Code and Codex how to work on outlit-sdk itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything outlit-sdk configures →

Reuse

Borrowing it

Nothing to install: this file belongs to OutlitAI/outlit-sdk. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/OutlitAI/outlit-sdk/main/.agents/skills/writing-plans/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/OutlitAI/outlit-sdk

Made for: Claude Code, Codex.

Wrote this? Show the measurements

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README.md
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agentmods 80×15 button for writing-plans

Your own site · 80×15
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Per session 37 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,217 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00037 $0.01217
Opus 5 $0.00018 $0.00609
Sonnet 5 $0.00007 $0.00243
Haiku 4.5 $0.00004 $0.00122

Measured 4d ago against content hash 7b817d172987, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

writing-plans 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.

.agents/skills/writing-plans/SKILL.md · 124 lines

How it starts

The opening of the file, as written. The whole thing — 124 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Writing Plans

Complexity Gate

Write an implementation plan when any of these apply:

  • The user explicitly asks for a plan.
  • An approved design or specification is ready for implementation planning.
  • The work changes architecture, cross-component contracts, public APIs, permissions, security, billing, or durable data.
  • The work includes migrations, compatibility transitions, rollout sequencing, recovery requirements, or difficult rollback.
  • Delivery has multiple meaningful stages, owners, repositories, deployments, or long-running checkpoints.
  • Correctness depends on resolving sequencing, interface, or verification choices before implementation.

Use a short internal plan when the outcome is clear and the work has no meaningful sequencing or unresolved contract decisions. A change to behavior or several files does not by itself require a separate plan document. Inspect discoverable details before deciding; preserve the user's requested planning depth.

If high-impact product or architecture decisions remain unresolved, use brainstorming before writing the plan.

Planning Workflow

  1. Read the approved requirements, relevant repository instructions, implementation surfaces, contracts, tests, and deployment conventions.
  2. Confirm the goal, scope, non-goals, constraints, and unresolved assumptions. Do not silently turn an implementation plan into a new design.
  3. Map the files and contracts that create meaningful implementation boundaries.
  4. Organize work into independently understandable, verifiable outcomes. Fold mechanical setup and documentation into the outcome they support.
  5. Add cross-cutting verification, rollout, observability, rollback, and completion criteria where relevant.
  6. Self-review the plan against the source requirements, repository state, and operational risks.

Save the plan to docs/superpowers/plans/YYYY-MM-DD-<topic>.md unless the user or repository specifies another location.

Plan Contract

Start with:

# <Topic> Implementation Plan

**Goal:** <one concrete outcome>
**Source:** <approved spec, issue, or requirements>
**Approach:** <short implementation strategy>
**Scope:** <included work and explicit non-goals>
**Key risks:** <material risks and mitigations>
**Completion:** <observable conditions that mean the work is done>

Read the full file on GitHub · 124 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 Changed · +2 lines 7b817d172987
  2. 10d ago First seen · 122 lines · 37 tokens per session scan A 4ec9862200ff

Subscribe to this mod's changes

writing-plans is a skill published in the GitHub repository OutlitAI/outlit-sdk (6 stars, last pushed today), licensed Apache-2.0. It adds 37 tokens to every session and 1,217 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 2026-08-31.