speckit-specify

speckit-specify is a skill for Claude Code from Sierra-Code-Co/internal-speckit-template. It costs 19 tokens per session (4,065 once invoked), scanned A, original, no licence file.

A specification tool that creates or updates a feature specification from a plain-language description of the feature.

In plain words
What is it for?
Use it to write a new feature specification or revise an existing one from natural-language requirements.
Why use it?
It helps turn a feature request into a clearer document describing what should be built.

Skill for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter.

Install

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.

agentmods
npx agentmods add skills/sierra-code-co/internal-speckit-template/speckit-specify
Any agent
npx skills add Sierra-Code-Co/internal-speckit-template --skill speckit-specify
Clone the repo
git clone --depth 1 https://github.com/Sierra-Code-Co/internal-speckit-template

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.

agentmods badge for speckit-specify

README.md
[![agentmods](https://agentmods.dev/badge/skills/sierra-code-co/internal-speckit-template/speckit-specify.svg)](https://agentmods.dev/skills/sierra-code-co/internal-speckit-template/speckit-specify)
Your own site
<a href="https://agentmods.dev/skills/sierra-code-co/internal-speckit-template/speckit-specify"><img src="https://agentmods.dev/badge/skills/sierra-code-co/internal-speckit-template/speckit-specify.svg" alt="Measured on agentmods" height="20"></a>
Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,065 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00019 $0.04065
Opus 5 $0.00010 $0.02032
Sonnet 5 $0.00004 $0.00813
Haiku 4.5 $0.00002 $0.00407

Measured 2d ago against content hash 42fe016b9183, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

speckit-specify 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 2d 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/speckit-specify/SKILL.md · 349 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 2d ago Changed 42fe016b9183
  2. 6d ago First seen · 349 lines · 19 tokens per session scan A 1d6d5d0168ca

Subscribe to this mod's changes

speckit-specify is a skill published in the GitHub repository Sierra-Code-Co/internal-speckit-template (5 stars, last pushed 3d ago), with no licence file. It adds 19 tokens to every session and 4,065 once invoked, about $0.0001 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.

Related

Other skills, from other repositories

artifact-conventions

Defines preservation, format, and section rules for SDD specification artifacts (spec.md, plan.md, tasks.md, checklists). Use when editing feature-artifact files under specs/ / to prevent accidental corruption of cross-referenced IDs, priorities, and gating state.

attilaszasz/sdd-pilot · 59 tokens

plan-authoring

Reference material for writing implementation plans (technical context, architecture decisions, data models, API contracts, project-instructions alignment). Loaded on demand by plan-feature; not directly invokable.

attilaszasz/sdd-pilot · 41 tokens

task-generation

Reference material with the canonical task-format grammar and decomposition rules for plan-to-tasks expansion. Loaded on demand by generate-tasks; not directly invokable.

attilaszasz/sdd-pilot · 35 tokens

adr-authoring

Defines the canonical MADR format, lifecycle rules, numbering policy, and SAD catalog contract for standalone ADRs under specs/adrs/.

attilaszasz/sdd-pilot · 30 tokens

implementation-standards

Reference material with coding standards (defensive coding, error handling, testing patterns). Loaded on demand by the Developer sub-agent (.github/agents/developer.md); not directly invokable.

attilaszasz/sdd-pilot · 44 tokens

spec-authoring

Reference material for writing product, technical, and operational specifications (work-item priorities, requirement families, success criteria). Loaded on demand by specify-feature; not directly invokable.

attilaszasz/sdd-pilot · 40 tokens