Agent skill

Gsd Fast

by SpillwaveSolutions in SpillwaveSolutions/agent-brain

Execute a trivial task inline — no subagents, no planning overhead

Install Gsd Fast

skills CLI

$ npx skills add SpillwaveSolutions/agent-brain --skill gsd-fast -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install SpillwaveSolutions/agent-brain gsd-fast --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/SpillwaveSolutions/agent-brain.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.codex/skills/gsd-fast .claude/skills/gsd-fast && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "gsd-fast" agent skill from https://github.com/SpillwaveSolutions/agent-brain/tree/main/.codex/skills/gsd-fast into .claude/skills/gsd-fast/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gsd-fast", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/SpillwaveSolutions/agent-brain/tree/main/.codex/skills/gsd-fast

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add SpillwaveSolutions/agent-brain --skill gsd-fast -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install SpillwaveSolutions/agent-brain gsd-fast --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/SpillwaveSolutions/agent-brain.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.codex/skills/gsd-fast .agents/skills/gsd-fast && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "gsd-fast" agent skill from https://github.com/SpillwaveSolutions/agent-brain/tree/main/.codex/skills/gsd-fast into .agents/skills/gsd-fast/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gsd-fast", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add SpillwaveSolutions/agent-brain --skill gsd-fast -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install SpillwaveSolutions/agent-brain gsd-fast --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/SpillwaveSolutions/agent-brain.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.codex/skills/gsd-fast .cursor/skills/gsd-fast && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "gsd-fast" agent skill from https://github.com/SpillwaveSolutions/agent-brain/tree/main/.codex/skills/gsd-fast into .cursor/skills/gsd-fast/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gsd-fast", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/SpillwaveSolutions/agent-brain.git --path .codex/skills/gsd-fast

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add SpillwaveSolutions/agent-brain --skill gsd-fast -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install SpillwaveSolutions/agent-brain gsd-fast --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/SpillwaveSolutions/agent-brain.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.codex/skills/gsd-fast .gemini/skills/gsd-fast && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "gsd-fast" agent skill from https://github.com/SpillwaveSolutions/agent-brain/tree/main/.codex/skills/gsd-fast into .gemini/skills/gsd-fast/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gsd-fast", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install SpillwaveSolutions/agent-brain gsd-fast

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add SpillwaveSolutions/agent-brain --skill gsd-fast -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/SpillwaveSolutions/agent-brain.git skills-src && mkdir -p .github/skills && cp -r skills-src/.codex/skills/gsd-fast .github/skills/gsd-fast && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "gsd-fast" agent skill from https://github.com/SpillwaveSolutions/agent-brain/tree/main/.codex/skills/gsd-fast into .github/skills/gsd-fast/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gsd-fast", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add SpillwaveSolutions/agent-brain --skill gsd-fast -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install SpillwaveSolutions/agent-brain gsd-fast --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/SpillwaveSolutions/agent-brain.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.codex/skills/gsd-fast .opencode/skills/gsd-fast && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "gsd-fast" agent skill from https://github.com/SpillwaveSolutions/agent-brain/tree/main/.codex/skills/gsd-fast into .opencode/skills/gsd-fast/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gsd-fast", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: gsd-fast
GitHub stars: 119
Used in: 3 other repos
Token cost: ~687 tokens
SKILL.md length: 281 words
Files: 1
Skills in repo: 55
Repo updated: Sep 19, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Execute a trivial task inline — no subagents, no planning overhead

Tasks that involve Subagents
SKILL.md covers A. Skill Invocation, B. AskUserQuestion →… and C. Task() → spawn_agent Mapping
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Gsd Fast is an agent skill from SpillwaveSolutions/agent-brain. Execute a trivial task inline — no subagents, no planning overhead

Its SKILL.md is about 690 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Agent Workflows, covering Subagents. The repository describes itself as: Local-first RAG memory for AI agents: hybrid + GraphRAG search, MCP server with OAuth 2.1, plugin for Claude Code / OpenCode / Codex. The licence is MIT.

When your agent uses it

Tasks that involve Subagents

Example prompts

“/gsd-fast”

What it can do on your machine

Read from SKILL.md and the folder at commit 8339623. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Gsd Fast loads about 687 tokens when it runs. Until then it costs about 19 tokens; SKILL.md has 281 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~19
When it runs · the whole SKILL.md, loaded when a task matches: ~687

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from SpillwaveSolutions/agent-brain at commit 8339623, republished under its MIT licence (© SpillwaveSolutions). 281 words, ~687 tokens.

Download SKILL.mdSave it as .claude/skills/gsd-fast/SKILL.md (or your agent's skills folder).

name: gsd-fast
description: Execute a trivial task inline — no subagents, no planning overhead
metadata.short-description: Execute a trivial task inline — no subagents, no planning overhead

<codex_skill_adapter>

A. Skill Invocation

This skill is invoked by mentioning $gsd-fast.
Treat all user text after $gsd-fast as {{GSD_ARGS}}.
If no arguments are present, treat {{GSD_ARGS}} as empty.

B. AskUserQuestion → request_user_input Mapping

GSD workflows use AskUserQuestion (Claude Code syntax). Translate to Codex request_user_input:

Parameter mapping:

header → header
question → question
Options formatted as "Label" — description → {label: "Label", description: "description"}
Generate id from header: lowercase, replace spaces with underscores

Batched calls:

AskUserQuestion([q1, q2]) → single request_user_input with multiple entries in questions[]

Multi-select workaround:

Codex has no multiSelect. Use sequential single-selects, or present a numbered freeform list asking the user to enter comma-separated numbers.

Execute mode fallback:

When request_user_input is rejected (Execute mode), present a plain-text numbered list and pick a reasonable default.

C. Task() → spawn_agent Mapping

GSD workflows use Task(...) (Claude Code syntax). Translate to Codex collaboration tools:

Direct mapping:

Task(subagent_type="X", prompt="Y") → spawn_agent(agent_type="X", message="Y")
Task(model="...") → omit (Codex uses per-role config, not inline model selection)
fork_context: false by default — GSD agents load their own context via <files_to_read> blocks

Parallel fan-out:

Spawn multiple agents → collect agent IDs → wait(ids) for all to complete

Result parsing:

Look for structured markers in agent output: CHECKPOINT, PLAN COMPLETE, SUMMARY, etc.
close_agent(id) after collecting results from each agent </codex_skill_adapter>

<objective>
Execute a trivial task directly in the current context without spawning subagents
or generating PLAN.md files. For tasks too small to justify planning overhead:
typo fixes, config changes, small refactors, forgotten commits, simple additions.

This is NOT a replacement for $gsd-quick — use $gsd-quick for anything that needs research, multi-step planning, or verification. $gsd-fast is for tasks you could describe in one sentence and execute in under 2 minutes. </objective>

<execution_context> @/Users/richardhightower/clients/spillwave/src/agent-brain/.codex/get-shit-done/workflows/fast.md </execution_context>

<process>
Execute the fast workflow from @/Users/richardhightower/clients/spillwave/src/agent-brain/.codex/get-shit-done/workflows/fast.md end-to-end.
</process>

Files

Just SKILL.md in .codex/skills/gsd-fast of SpillwaveSolutions/agent-brain.

Open the folder on GitHubat commit 8339623

Used in 3 other repositories

We found 14 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 3 other GitHub owners. This page covers the copy in SpillwaveSolutions/agent-brain, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Gsd Fast next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Gsd Fast compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Gsd Fast this skillSpillwaveSolutions/agent-brain	119	3 repos	~687	Automated safety check: Pass	MIT	19 days ago
Akb Ingestdnotitia/akb	162	—	~2k	Automated safety check: Pass	Custom licence	today
Claude Code Agent Developmentanthropics/claude-plugins-official	38k	7 repos	~2.8k	Automated safety check: Pass	Apache-2.0	today
Subagent Driven DevelopmentAsvarox/allkaraoke	261	37 repos	~1.2k	Automated safety check: Pass	None	today
Dispatching Parallel Agentsultralisp/ultralisp	258	40 repos	~1.5k	Automated safety check: Pass	None	26 days ago
Paseo Advisor Second Opiniongetpaseo/paseo	20k	1 repos	~756	Automated safety check: Pass	Custom licence	today

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Questions about Gsd Fast

What does Gsd Fast do?

Execute a trivial task inline — no subagents, no planning overhead. Gsd Fast is an agent skill from SpillwaveSolutions/agent-brain.

When should I use Gsd Fast?

Gsd Fast fits situations like: tasks that involve Subagents.

How do I install Gsd Fast in Claude Code?

Run `npx skills add SpillwaveSolutions/agent-brain --skill gsd-fast -a claude-code`. Or copy the skill folder (.codex/skills/gsd-fast in SpillwaveSolutions/agent-brain) into .claude/skills/gsd-fast in your project. Claude Code loads it when a task matches its description.

How do I install Gsd Fast in Codex?

Run `npx skills add SpillwaveSolutions/agent-brain --skill gsd-fast -a codex`. Or copy the skill folder (.codex/skills/gsd-fast in SpillwaveSolutions/agent-brain) into .agents/skills/gsd-fast in your project. Codex loads it when a task matches its description.

Can I use Gsd Fast in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add SpillwaveSolutions/agent-brain --skill gsd-fast -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/gsd-fast, .gemini/skills/gsd-fast, .github/skills/gsd-fast and .opencode/skills/gsd-fast in your project.

What does Gsd Fast need to run?

SKILL.md names no scripts, command-line tools or credentials: Gsd Fast is instructions for the agent only.

Does Gsd Fast access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Gsd Fast safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Gsd Fast use?

Gsd Fast is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Gsd Fast use?

About 687 tokens (SKILL.md is roughly 2.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Gsd Fast?

Skills that share tags, products or a category with Gsd Fast: Akb Ingest (dnotitia/akb, 162 stars), Claude Code Agent Development (anthropics/claude-plugins-official, 38k stars), Subagent Driven Development (Asvarox/allkaraoke, 261 stars) and Dispatching Parallel Agents (ultralisp/ultralisp, 258 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Gsd Fast?

SpillwaveSolutions (a GitHub organization) maintains it in SpillwaveSolutions/agent-brain, which has 119 GitHub stars. The repository holds 55 skills in this directory. The repository was last updated on September 19, 2026.

Source: SpillwaveSolutions/agent-brain on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Gsd Fast

Install Gsd Fast

Facts

At a glance

What it does

When your agent uses it

Example prompts

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

A. Skill Invocation

B. AskUserQuestion → request_user_input Mapping

C. Task() → spawn_agent Mapping

Files

Used in 3 other repositories

Compare with similar skills

Similar skills

Akb Ingest

Claude Code Agent Development

Subagent Driven Development

Dispatching Parallel Agents

Paseo Advisor Second Opinion

Task Observer

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Gsd Thread

Questions about Gsd Fast

Install Gsd Fast

Facts

At a glance

What it does

When your agent uses it

Example prompts

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

A. Skill Invocation

B. AskUserQuestion → request_user_input Mapping

C. Task() → spawn_agent Mapping

Files

Used in 3 other repositories

Compare with similar skills

Similar skills

More from SpillwaveSolutions/agent-brain

Related

Questions about Gsd Fast