Borrowing it
Nothing to install: this file belongs to zakelfassi/skills-driven-development. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/zakelfassi/skills-driven-development/main/CLAUDE.mdgit clone --depth 1 https://github.com/zakelfassi/skills-driven-developmentWrote 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.
[](https://agentmods.dev/instructions/zakelfassi/skills-driven-development/claude-md)<a href="https://agentmods.dev/instructions/zakelfassi/skills-driven-development/claude-md"><img src="https://agentmods.dev/badge/instructions/zakelfassi/skills-driven-development/claude-md/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.
<a href="https://agentmods.dev/instructions/zakelfassi/skills-driven-development/claude-md"><img src="https://agentmods.dev/badge/instructions/zakelfassi/skills-driven-development/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00500 | $0.00500 |
| Opus 5.5 | $0.00200 | $0.00200 |
| Sonnet 5.5 | $0.00100 | $0.00100 |
| Haiku 4.5 | $0.00050 | $0.00050 |
Grade A, and why
skills-driven-development CLAUDE.md 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 2mo 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.
What it actually says
SkDD — agent instructions
Active goal
The current build goal is docs/plans/2026-07-skdd-commons.md — SkDD Commons + the July 2026 Frontier drop + CLI add/push + plugin hooks. If you were spun up in this repo without a more specific task, that plan is your task: read it fully, ingest its §1 context list, and execute phase by phase. Check off acceptance boxes and append to its §9 execution log as you go.
House rules
- pnpm only. Node ≥20.
- Tests: vitest —
pnpm --dir cli test. Every new CLI command gets tests incli/test/mirroring the existing style (fixtures undercli/test/fixtures/). - Lint/format: biome —
pnpm --dir cli lint/format. No eslint/prettier here. - Commits: conventional commits (
feat:,fix:,docs:,chore:…). release-please buildsCHANGELOG.mdfrom them — never hand-edit the changelog. - The CLI is published as
@zakelfassi/skdd(npm,cli/package). Don't break existing command flags; additive changes only unless a major is planned. - Skills are spec-bound: every SKILL.md must pass
skdd validate --strict(agentskills.io spec + SkDD lifecycle metadata). Author skills perskillforge/SKILL.md.
Non-goals (binding, from ROADMAP.md)
No hosted registry or server-side skill index (git is the registry). No skill-executing runtime. No review gate on forging (reviewing community imports is different and fine). No semantic search.
Operational guardrails
- Harness mirror dirs (
~/.claude/skills,~/.codex/skills, …) are often populated regular directories holding skills that live in no colony. Neverskdd link --forceover them — it replaces the directory with a symlink and effectively deletes those skills. Mirror logic must stay non-destructive by default. ~/.skdd/on this machine is the maintainer's live global colony, not a test fixture. Use scratch dirs for tests.
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.
- 2mo ago First seen · 24 lines · 500 tokens per session scan A 48f9214cee9b
skills-driven-development CLAUDE.md is an instructions file published in the GitHub repository zakelfassi/skills-driven-development (18 stars, last pushed 3mo ago), licensed MIT. It adds 500 tokens to every session, about $0.0020 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 2026-08-30.
skills-driven-development CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| skills-driven-development CLAUDE.mdzakelfassi/skills-driven-development | Instructions file | 18 | 3mo ago | MIT | A | 500 | Claude Code |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | yesterday | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | today | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | today | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 275k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |