speckit-git-validate

speckit-git-validate is a skill for Claude Code, Codex from arrrrny/zuraffa. It costs 16 tokens per session (542 once invoked), scanned A, original, MIT.

A Git branch check that tests whether the current branch name follows the expected feature-branch format and whether its related specification directory exists. Git is the version-control system used to track code changes.

In plain words
What is it for?
Use it before or during feature work to validate sequential or timestamped branch names and their matching entries under `specs/`.
Why use it?
It catches branches that do not follow the project’s naming rules or are missing the expected specification. This reduces confusion when connecting code work to its plan.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

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/arrrrny/zuraffa/speckit-git-validate
Any agent
npx skills add arrrrny/zuraffa --skill speckit-git-validate
Clone the repo
git clone --depth 1 https://github.com/arrrrny/zuraffa

Made for: Claude Code, Codex.

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-git-validate

README.md
[![agentmods](https://agentmods.dev/badge/skills/arrrrny/zuraffa/speckit-git-validate.svg)](https://agentmods.dev/skills/arrrrny/zuraffa/speckit-git-validate)
Your own site
<a href="https://agentmods.dev/skills/arrrrny/zuraffa/speckit-git-validate"><img src="https://agentmods.dev/badge/skills/arrrrny/zuraffa/speckit-git-validate.svg" alt="Measured on agentmods" height="20"></a>
Per session 16 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 542 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original 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 $0.00016 $0.00542
Opus 5 $0.00008 $0.00271
Sonnet 5 $0.00003 $0.00108
Haiku 4.5 $0.00002 $0.00054

Measured yesterday against content hash 8bff205ad254, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

speckit-git-validate 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 yesterday.

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.

.agents/skills/speckit-git-validate/SKILL.md · 54 lines

What it actually says

Validate Feature Branch

Validate that the current Git branch follows the expected feature branch naming conventions.

Prerequisites

  • Check if Git is available by running git rev-parse --is-inside-work-tree 2>/dev/null
  • If Git is not available, output a warning and skip validation:
    [specify] Warning: Git repository not detected; skipped branch validation
    

Validation Rules

Get the current branch name:

git rev-parse --abbrev-ref HEAD

The branch name's final path segment must start with one of these feature markers:

  1. Sequential: [0-9]{3,}- (e.g., 001-feature-name, 042-fix-bug, 1000-big-feature, jdoe/web/008-guided-tour)
  2. Timestamp: [0-9]{8}-[0-9]{6}- (e.g., 20260319-143022-feature-name, jdoe/web/20260319-143022-feature-name)

Execution

If on a feature branch (matches either pattern):

  • Output: ✓ On feature branch: <branch-name>
  • Check if the corresponding spec directory exists under specs/:
    • For sequential branches, look for specs/<prefix>-* where prefix matches the numeric portion, regardless of branch namespace prefixes
    • For timestamp branches, look for specs/<prefix>-* where prefix matches the YYYYMMDD-HHMMSS portion, regardless of branch namespace prefixes
  • If spec directory exists: ✓ Spec directory found: <path>
  • If spec directory missing: ⚠ No spec directory found for prefix <prefix>

If NOT on a feature branch:

  • Output: ✗ Not on a feature branch. Current branch: <branch-name>
  • Output: Feature branches should be named like: 001-feature-name, 20260319-143022-feature-name, or <namespace>/001-feature-name

Graceful Degradation

If Git is not installed or the directory is not a Git repository:

  • Check the SPECIFY_FEATURE environment variable as a fallback
  • If set, validate that value against the naming patterns
  • If not set, skip validation with a warning
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 · -53 lines · -16 tokens per session 80dbc09b50c1
  2. 6d ago First seen · 54 lines · 16 tokens per session scan A 8bff205ad254

Subscribe to this mod's changes

speckit-git-validate is a skill published in the GitHub repository arrrrny/zuraffa (5 stars, last pushed yesterday), licensed MIT. It adds 16 tokens to every session and 542 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.