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.
git 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/commands/gotalab/cc-sdd/spec-init)<a href="https://agentmods.dev/commands/gotalab/cc-sdd/spec-init"><img src="https://agentmods.dev/badge/commands/gotalab/cc-sdd/spec-init/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/commands/gotalab/cc-sdd/spec-init"><img src="https://agentmods.dev/badge/commands/gotalab/cc-sdd/spec-init.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 | $0.00008 | $0.00676 |
| Opus 5.5 | $0.00003 | $0.00270 |
| Sonnet 5.5 | $0.00002 | $0.00135 |
| Haiku 4.5 | $0.00001 | $0.00068 |
Grade A, and why
spec-init 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 1mo 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.
Copies of this mod
5 near-identical copies found in the catalogue:
- kiro-spec-init — 94% identical, 11 lines differ
- spec-init — 91% identical, 10 lines differ
- spec-init — 91% identical, 10 lines differ
- spec-init — 91% identical, 10 lines differ
- kiro-spec-init — 84% identical, 21 lines differ
How it starts
The opening of the file, as written. The whole thing — 65 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Spec Initialization
<background_information>
- Mission: Initialize the first phase of spec-driven development by creating directory structure and metadata for a new specification
- Success Criteria:
- Generate appropriate feature name from project description
- Create unique spec structure without conflicts
- Provide clear path to next phase (requirements generation) </background_information>
Execution Steps
- Check Uniqueness: Verify
{{KIRO_DIR}}/specs/for naming conflicts (append number suffix if needed) - Create Directory:
{{KIRO_DIR}}/specs/[feature-name]/ - Initialize Files Using Templates:
- Read
{{KIRO_DIR}}/settings/templates/specs/init.json - Read
{{KIRO_DIR}}/settings/templates/specs/requirements-init.md - Replace placeholders:
{{FEATURE_NAME}}→ generated feature name{{TIMESTAMP}}→ current ISO 8601 timestamp{{PROJECT_DESCRIPTION}}→ $ARGUMENTS
- Write
spec.jsonandrequirements.mdto spec directory
- Read
Important Constraints
- DO NOT generate requirements/design/tasks at this stage
- Follow stage-by-stage development principles
- Maintain strict phase separation
- Only initialization is performed in this phase
Tool Guidance
- Use Glob to check existing spec directories for name uniqueness
- Use Read to fetch templates:
init.jsonandrequirements-init.md - Use Write to create spec.json and requirements.md after placeholder replacement
- Perform validation before any file write operation
Output Description
Provide output in the language specified in spec.json with the following structure:
- Generated Feature Name:
feature-nameformat with 1-2 sentence rationale - Project Summary: Brief summary (1 sentence)
- Created Files: Bullet list with full paths
- Next Step: Command block showing
/kiro:spec-requirements <feature-name> - Notes: Explain why only initialization was performed (2-3 sentences on phase separation)
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.
- 1mo ago First seen · 65 lines · 8 tokens per session scan A 15e41ae45b7c
spec-init is a command published in the GitHub repository gotalab/cc-sdd (3,731 stars, last pushed 9d ago), licensed MIT. It adds 8 tokens to every session and 676 once invoked, about $0.0000 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.
Other commands, from other repositories
decision-interview
Ask the minimum decision questions needed before turning the task into canonical implementation rules, on behavior, data integrity, rollout safety, or test strategy. Use when missing information is decision-driven (not factual) or undecided policy blocks planning; in an attended chain it records an open decision as…
implementation-plan
Define an incremental plan for the active task as IMPLEMENTATIONPLAN.md plus a TASKSTATE.md update: smallest safe slices with scope, validation and exit criteria. No code is written. A --spec mode derives slices from a spec or PRD. A retrofit mode annotates in-progress plans so they can adopt implement-fleet. Do not…
slice-closure
Decide whether the current slice is ready to close, separating slice completion from task completion, and record the result in slice notes and TASKSTATE.md. Use when a slice was implemented, validated or reviewed and may be ready to close. Do not use before slice implementation, during planning, or for overall task…
task-close
Close a whole finished task: verify the spec done-conditions, set TASKSTATE.md to its final closed state, and move the folder from active/ to archive/. Use when all slices are closed, the work is merged or explicitly waived, and the task is ending. Do not use for one slice (use slice-closure), unfinished work…
autonomous-run
Run one approved task in one supervised session with the direct-use reference dispatcher, delegating verifiable slices to existing commands and emitting PROPOSED diffs only and never creating commits or attestation refs. Use when a maintainer invokes Fhorja directly after approve-plan and a BOOT verdict from…
branch-commit
Return a branch name and concise commit message (max 3 lines) for the current task, grounded in the real git diff; with --apply, create the commit after showing the staged diff. Use when the user only needs quick branch and commit naming before committing, PR packaging is unnecessary, and a real diff exists; use…