karimo-overview: Skill for Claude Code

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

writing-plans is a skill for Claude Code from opensesh/karimo-overview. It costs 0 tokens per session (1,421 once invoked), scanned A, original, Apache-2.0.

A guide for writing detailed implementation plans for developers who know how to build software but do not know the existing codebase. It covers the architecture, technology choices, design-system checks, and execution details.

In plain words
What is it for?
Use it to plan features, design solutions, map multi-file changes, and document the components, patterns, tests, and technical decisions involved.
Why use it?
It turns a vague feature idea into a plan another developer or agent can follow without repeatedly asking for missing context.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions subagents.

This is opensesh/karimo-overview's own configuration. It tells Claude Code how to work on karimo-overview 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 karimo-overview configures →

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is import { FeatureName } from '../FeatureName';.

Reuse

Borrowing it

Nothing to install: this file belongs to opensesh/karimo-overview. 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/opensesh/karimo-overview/main/.claude/skills/writing-plans/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/opensesh/karimo-overview

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.

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README.md
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Your own site
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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 writing-plans

Your own site · 80×15
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Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,421 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 $0.00000 $0.01421
Opus 5 $0.00000 $0.00711
Sonnet 5 $0.00000 $0.00284
Haiku 4.5 $0.00000 $0.00142

Measured 6d ago against content hash b21077de783c, 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 6d 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.

.claude/skills/writing-plans/SKILL.md · 207 lines

How it starts

The opening of the file, as written. The whole thing — 207 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Writing Plans

This skill activates when the user requests implementation planning, architecture design, feature roadmaps, or asks to "plan", "design", or "architect" a solution. Also activates when starting complex multi-file changes.


Core Philosophy

Write comprehensive implementation plans assuming the reader has zero context for our codebase but deep development expertise. Plans should enable any skilled developer—or parallel agent—to execute independently with zero additional guidance.

BOS Integration: Every plan must account for our design system, component patterns, and brand voice requirements at the architecture level.


Plan Structure (Required Sections)

1. Header Block

# Implementation Plan: [Feature Name]

**Goal**: [One-sentence outcome statement]
**Architecture**: [High-level approach]
**Tech Stack**: Next.js 16+, React 19, TypeScript strict, Tailwind CSS, React Aria
**Design System**: BOS-3.0 (Charcoal/Vanilla/Aperol palette, semantic tokens)
**Created**: YYYY-MM-DD

2. Design System Checklist

Before any UI task, verify:

  • Components use semantic CSS variables (--bg-primary, --fg-secondary, etc.)
  • Borders follow 40% opacity pattern (border-border-secondary)
  • Brand color (Aperol) reserved for CTAs/active states only
  • Interactive elements use React Aria Components
  • Warm neutrals (Charcoal/Vanilla) instead of pure black/white

3. Task Breakdown

Each task represents 2-5 minutes of work. Use this granularity:

### Task 1: Create component skeleton

**File**: `components/feature/FeatureName.tsx`
**Type**: Component (React Aria base)
**Design Token Requirements**:

- Background: `bg-bg-secondary`
- Border: `border-border-secondary`
- Text: `text-fg-primary`

**Steps**:

1. Write failing test in `__tests__/FeatureName.test.tsx`
2. Verify test fails (RED)
3. Implement minimal component
4. Verify test passes (GREEN)
5. Commit: `feat(feature): add FeatureName component skeleton`

**Code**:
\`\`\`tsx
// **tests**/FeatureName.test.tsx
import { render, screen } from '@testing-library/react';
import { FeatureName } from '../FeatureName';

describe('FeatureName', () => {
it('renders with BOS design tokens', () => {
render(<FeatureName />);
// Verify semantic token usage
expect(screen.getByRole('region')).toHaveClass('bg-bg-secondary');
});
});
\`\`\`

**Expected Output**:
\`\`\`
FAIL **tests**/FeatureName.test.tsx
FeatureName
✕ renders with BOS design tokens (5ms)
\`\`\`

Read the full file on GitHub · 207 lines

Files

What ships with it

2 files 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. 6d ago First seen · 207 lines · 0 tokens per session scan A b21077de783c

Subscribe to this mod's changes

writing-plans is a skill published in the GitHub repository opensesh/karimo-overview (11 stars, last pushed 4mo ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 1,421 tokens. 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 2026-09-03.

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