speckit.git.validate

A command that checks whether the current Git branch follows an approved feature-branch naming pattern and has a matching folder under specs/. Git is a tool for tracking code changes, and a branch is a separate line of work.

In plain words
What is it for?
Checking sequential or timestamped branch names, confirming that Git is available, and looking for the related specification directory.
Why use it?
It catches incorrectly named branches or missing specification folders before work continues.

Command

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 commands/martinkuhne/devstack/speckit.git.validate
Clone the repo
git clone --depth 1 https://github.com/MartinKuhne/devstack
Per session 8 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 446 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% 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 $0.00008 $0.00446
Opus 5 $0.00004 $0.00223
Sonnet 5 $0.00002 $0.00089
Haiku 4.5 $0.00001 $0.00045

Measured yesterday against content hash d8f8e5ecc52e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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.

Origin

This is a copy

100% identical to speckit.git.validate — 0 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.

.specify/extensions/git/commands/speckit.git.validate.md · 50 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 must match one of these patterns:

  1. Sequential: ^[0-9]{3,}- (e.g., 001-feature-name, 042-fix-bug, 1000-big-feature)
  2. Timestamp: ^[0-9]{8}-[0-9]{6}- (e.g., 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
    • For timestamp branches, look for specs/<prefix>-* where prefix matches the YYYYMMDD-HHMMSS portion
  • 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 or 20260319-143022-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. yesterday First seen · 50 lines · 8 tokens per session scan A d8f8e5ecc52e

Subscribe to this mod's changes

speckit.git.validate is a command published in the GitHub repository MartinKuhne/devstack (2 stars, last pushed 21d ago), licensed MIT. It adds 8 tokens to every session and 446 once invoked, about $0.0000 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to speckit.git.validate, differing in 0 lines, and is treated as a copy.