speckit.specify

speckit.specify is a command for Claude Code from T-0-co/t-0-spec-kit-ralph. It costs 13 tokens per session (2,801 once invoked), scanned A, a copy of specify, MIT.

A command that creates or updates a written feature specification from a plain-language description. A feature specification describes what software should do and the requirements it must meet.

In plain words
What is it for?
Use it when starting a software feature, choosing a short branch name, and checking whether related branches already exist.
Why use it?
It turns an informal request into a clearer plan that can guide implementation and review.

Command for Claude Code

Written for Claude Code: $ARGUMENTS substitution. Also seen: installed under .agents/ (shared by several agents).

Good fit Use it when starting a software feature, choosing a short branch name, and checking whether related branches already exist.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/t-0-co/t-0-spec-kit-ralph/speckit.specify
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.

Clone the repo
git clone --depth 1 https://github.com/T-0-co/t-0-spec-kit-ralph

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/commands/t-0-co/t-0-spec-kit-ralph/speckit.specify/github.svg)](https://agentmods.dev/commands/t-0-co/t-0-spec-kit-ralph/speckit.specify)
Your own site
<a href="https://agentmods.dev/commands/t-0-co/t-0-spec-kit-ralph/speckit.specify"><img src="https://agentmods.dev/badge/commands/t-0-co/t-0-spec-kit-ralph/speckit.specify/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.

agentmods 80×15 button for speckit.specify

Your own site · 80×15
<a href="https://agentmods.dev/commands/t-0-co/t-0-spec-kit-ralph/speckit.specify"><img src="https://agentmods.dev/badge/commands/t-0-co/t-0-spec-kit-ralph/speckit.specify.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 13 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,801 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 73% copy Near-identical to another mod 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 $0.00013 $0.02801
Opus 5 $0.00006 $0.01401
Sonnet 5 $0.00003 $0.00560
Haiku 4.5 $0.00001 $0.00280

Measured 10d ago against content hash 9ed7aaa9512f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, 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 10d 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.

Origin

This is a copy

73% identical to specify — 193 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.

.agents/commands/speckit.specify.md · 259 lines

How it starts

The opening of the file, as written. The whole thing — 259 lines — stays where its author put it; the contents beside it link to each section on GitHub.

User Input

$ARGUMENTS

You MUST consider the user input before proceeding (if not empty).

Outline

The text the user typed after /speckit.specify in the triggering message is the feature description. Assume you always have it available in this conversation even if $ARGUMENTS appears literally below. Do not ask the user to repeat it unless they provided an empty command.

Given that feature description, do this:

  1. Generate a concise short name (2-4 words) for the branch:

    • Analyze the feature description and extract the most meaningful keywords
    • Create a 2-4 word short name that captures the essence of the feature
    • Use action-noun format when possible (e.g., "add-user-auth", "fix-payment-bug")
    • Preserve technical terms and acronyms (OAuth2, API, JWT, etc.)
    • Keep it concise but descriptive enough to understand the feature at a glance
    • Examples:
      • "I want to add user authentication" → "user-auth"
      • "Implement OAuth2 integration for the API" → "oauth2-api-integration"
      • "Create a dashboard for analytics" → "analytics-dashboard"
      • "Fix payment processing timeout bug" → "fix-payment-timeout"
  2. Check for existing branches before creating new one:

    a. First, fetch all remote branches to ensure we have the latest information:

    git fetch --all --prune
    

    b. Find the highest feature number across all sources for the short-name:

    • Remote branches: git ls-remote --heads origin | grep -E 'refs/heads/[0-9]+-<short-name>$'
    • Local branches: git branch | grep -E '^[* ]*[0-9]+-<short-name>$'
    • Specs directories: Check for directories matching specs/[0-9]+-<short-name>

    c. Determine the next available number:

    • Extract all numbers from all three sources
    • Find the highest number N
    • Use N+1 for the new branch number

    d. Run the script .specify/scripts/bash/create-new-feature.sh --json "$ARGUMENTS" with the calculated number and short-name:

    • Pass --number N+1 and --short-name "your-short-name" along with the feature description
    • Bash example: .specify/scripts/bash/create-new-feature.sh --json "$ARGUMENTS" --json --number 5 --short-name "user-auth" "Add user authentication"
    • PowerShell example: .specify/scripts/bash/create-new-feature.sh --json "$ARGUMENTS" -Json -Number 5 -ShortName "user-auth" "Add user authentication"

Read the full file on GitHub · 259 lines

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. 10d ago First seen · 259 lines · 13 tokens per session scan A 9ed7aaa9512f

Subscribe to this mod's changes

speckit.specify is a command published in the GitHub repository T-0-co/t-0-spec-kit-ralph (10 stars, last pushed 2mo ago), licensed MIT. It adds 13 tokens to every session and 2,801 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 73% identical to specify, differing in 193 lines, and is treated as a copy.