cc-sdd is a spec-driven development workflow for coding agents: it turns approved software specifications into requirements, designs, task plans, and extended autonomous implementation. Developers use it across several AI coding agents, with independent review and task-level continuation for long-running work. The catalogue entries provide commands, skills, agents, and instructions for using this workflow.
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.
npx agentmods add instructions/gotalab/cc-sdd/claude-mdgit clone --depth 1 https://github.com/gotalab/cc-sddWrote 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/gotalab/cc-sdd/claude-md)<a href="https://agentmods.dev/instructions/gotalab/cc-sdd/claude-md"><img src="https://agentmods.dev/badge/instructions/gotalab/cc-sdd/claude-md.svg" alt="Measured on agentmods" 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 | $0.00786 | $0.00786 |
| Opus 5 | $0.00393 | $0.00393 |
| Sonnet 5 | $0.00157 | $0.00157 |
| Haiku 4.5 | $0.00079 | $0.00079 |
Grade A, and why
cc-sdd 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 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.
This is a copy
91% identical to cc-sdd AGENTS.md — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 62 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Agentic SDLC and Spec-Driven Development
Kiro-style Spec-Driven Development on an agentic SDLC
Project Context
Paths
- Steering:
.kiro/steering/ - Specs:
.kiro/specs/
Steering vs Specification
Steering (.kiro/steering/) - Guide AI with project-wide rules and context
Specs (.kiro/specs/) - Formalize development process for individual features
Active Specifications
- Check
.kiro/specs/for active specifications - Use
/kiro-spec-status [feature-name]to check progress
Development Guidelines
- Think in English, generate responses in English. All Markdown content written to project files (e.g., requirements.md, design.md, tasks.md, research.md, validation reports) MUST be written in the target language configured for this specification (see spec.json.language).
Minimal Workflow
- Phase 0 (optional):
/kiro-steering,/kiro-steering-custom - Discovery:
/kiro-discovery "idea"— determines action path, writes brief.md + roadmap.md for multi-spec projects - Phase 1 (Specification):
- Single spec:
/kiro-spec-quick {feature} [--auto]or step by step:/kiro-spec-init "description"/kiro-spec-requirements {feature}/kiro-validate-gap {feature}(optional: for existing codebase)/kiro-spec-design {feature} [-y]/kiro-validate-design {feature}(optional: design review)/kiro-spec-tasks {feature} [-y]
- Multi-spec:
/kiro-spec-batch— creates all specs from roadmap.md in parallel by dependency wave
- Single spec:
- Phase 2 (Implementation):
/kiro-impl {feature} [tasks]- Without task numbers: autonomous mode (subagent per task + independent review + final validation)
- With task numbers: manual mode (selected tasks only in main context)
/kiro-validate-impl {feature}(standalone re-validation)
- Progress check:
/kiro-spec-status {feature}(use anytime)
Skills Structure
Skills are located in .claude/skills/kiro-*/SKILL.md
- Each skill is a directory with a
SKILL.mdfile - Skills run inline with access to conversation context
- Skills may delegate parallel research to subagents for efficiency
- Additional files (templates, examples) can be added to skill directories
kiro-review— task-local adversarial review protocol used by reviewer subagentskiro-debug— root-cause-first debug protocol used by debugger subagentskiro-verify-completion— fresh-evidence gate before success or completion claims- If there is even a 1% chance a skill applies to the current task, invoke it. Do not skip skills because the task seems simple.
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.
- 6d ago First seen · 62 lines · 786 tokens per session scan A 6505035466f2
cc-sdd CLAUDE.md is an instructions file published in the GitHub repository gotalab/cc-sdd (3,653 stars, last pushed 3mo ago), licensed MIT. It adds 786 tokens to every session, about $0.0039 per session on Opus 5. A static security scan graded it A with 0 findings. It is 91% identical to cc-sdd AGENTS.md, differing in 2 lines, and is treated as a copy.
Other instructions, from other repositories
todo-for-ai AGENTS.md
AGENTS.md instructions for todo-for-ai/todo-for-ai: These constraints are mandatory for all pages and components in this repository.
post-kit AGENTS.md
Instructions for Huzaifa-ali/post-kit, covering post-kit, how this works, first run, pipeline and ⛔ critical: dedup runs before research.
template GEMINI.md
Instructions for ai-plugin-marketplace/template, covering skill evaluator, usage and how it works.
wassden-mcp CLAUDE.md
Claude Code instructions for tokusumi/wassden-mcp, covering claude code instructions, linter and test policy, commands, development commands and cli testing commands.
sdd-pilot sddp-bootstrap.instructions.md
Instructions for attilaszasz/sdd-pilot: These are project-level bootstrap documents. Edit each via its owning skill.
awesome-copilot-id AGENTS.md
AGENTS.md instructions for GulajavaMinistudio/awesome-copilot-id, covering communication, explanation and documentation, markdown formatting, user communication style and workflow & methodology.