What is speckit.git.feature?

A command that creates and switches to a new Git feature branch, optionally using a supplied name, number, or timestamp.

Use it when beginning an isolated feature or specification change in a Git repository.

It avoids manually choosing branch names and running separate Git commands when starting work on a feature.

How MartinKuhne/devstack configures Claude Code and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to MartinKuhne/devstack. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/MartinKuhne/devstack/main/.opencode/command/speckit.git.feature.md

Clone the repo

git clone --depth 1 https://github.com/MartinKuhne/devstack

Made for: Claude Code, OpenCode.

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.

README.md

[![agentmods](https://agentmods.dev/badge/commands/martinkuhne/devstack/speckit.git.feature/github.svg)](https://agentmods.dev/commands/martinkuhne/devstack/speckit.git.feature)

Your own site

<a href="https://agentmods.dev/commands/martinkuhne/devstack/speckit.git.feature"><img src="https://agentmods.dev/badge/commands/martinkuhne/devstack/speckit.git.feature/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.

Your own site · 80×15

<a href="https://agentmods.dev/commands/martinkuhne/devstack/speckit.git.feature"><img src="https://agentmods.dev/badge/commands/martinkuhne/devstack/speckit.git.feature.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 9 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 763 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 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.

Model	Per session	Once invoked
Fable 5.1	$0.00009	$0.00763
Opus 5.5	$0.00004	$0.00305
Sonnet 5.5	$0.00002	$0.00153
Haiku 4.5	$0.00001	$0.00076

Measured 1mo ago against content hash 59c63b69a062, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

speckit.git.feature 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.

Origin

This is a copy

100% identical to speckit.git.feature — 68 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.

.opencode/command/speckit.git.feature.md · 70 lines

How it starts

The opening of the file, as written. The whole thing — 70 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Create Feature Branch

Create and switch to a new git feature branch for the given specification. This command handles branch creation only — the spec directory and files are created by the core /speckit.specify workflow.

User Input

$ARGUMENTS

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

Environment Variable Override

If the user explicitly provided GIT_BRANCH_NAME (e.g., via environment variable, argument, or in their request), pass it through to the script by setting the GIT_BRANCH_NAME environment variable before invoking the script. When GIT_BRANCH_NAME is set:

The script uses the exact value as the branch name, bypassing all prefix/suffix generation
--short-name, --number, and --timestamp flags are ignored
FEATURE_NUM is extracted from the name if it starts with a numeric prefix, otherwise set to the full branch name

Prerequisites

Verify Git is available by running git rev-parse --is-inside-work-tree 2>/dev/null
If Git is not available, warn the user and skip branch creation

Branch Numbering Mode

Determine the branch numbering strategy by checking configuration in this order:

Check .specify/extensions/git/git-config.yml for branch_numbering value
Check .specify/init-options.json for branch_numbering value (backward compatibility)
Default to sequential if neither exists

Execution

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

Analyze the feature description and extract the most meaningful keywords
Use action-noun format when possible (e.g., "add-user-auth", "fix-payment-bug")
Preserve technical terms and acronyms (OAuth2, API, JWT, etc.)

Run the appropriate script based on your platform:

Bash: .specify/extensions/git/scripts/bash/create-new-feature.sh --json --short-name "<short-name>" "<feature description>"
Bash (timestamp): .specify/extensions/git/scripts/bash/create-new-feature.sh --json --timestamp --short-name "<short-name>" "<feature description>"
PowerShell: .specify/extensions/git/scripts/powershell/create-new-feature.ps1 -Json -ShortName "<short-name>" "<feature description>"
PowerShell (timestamp): .specify/extensions/git/scripts/powershell/create-new-feature.ps1 -Json -Timestamp -ShortName "<short-name>" "<feature description>"

Read the full file on GitHub · 70 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.

1mo ago Changed · +2 lines 59c63b69a062
2mo ago First seen · 68 lines · 9 tokens per session scan A facdc68ceff5

Subscribe to this mod's changes

speckit.git.feature is a command published in the GitHub repository MartinKuhne/devstack (2 stars, last pushed 5d ago), licensed MIT. It adds 9 tokens to every session and 763 once invoked, about $0.0000 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to speckit.git.feature, differing in 68 lines, and is treated as a copy.

Git and workflow

speckit.git.feature next to 6 commands from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
speckit.git.featureMartinKuhne/devstack	Command	2	5d ago	MIT	A	9	Claude Code, OpenCode
merge-conflict-analysisrjmurillo/ai-agents	Command	49	yesterday	MIT	A	0	GitHub Copilot
release-notesOpenHands/extensions	Command	176	yesterday	MIT	A	44	Claude Code
commitechoVic/blade-code	Command	181	24d ago	MIT	A	8	Claude Code
repo-audittractorjuice/arc-kit	Command	2.3k	2d ago	none	A	29	Claude Code
propsmill/infrahub-mcp	Command	10	yesterday	Apache-2.0	A	18	Claude Code
codex-reviewoalders/kitchen-sink	Command	5	4d ago	MIT	A	41	Claude Code

devstack: Command for Claude Code