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Agent skill

Spike

by greenfield-inc in greenfield-inc/Pane

Use only when a decision is blocked on a fact nobody has. An agent skill from greenfield-inc/Pane.

Custom licenceAuto-check passed

Install Spike

skills CLI
$ npx skills add greenfield-inc/Pane --skill spike -a claude-code

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

GitHub CLI
$ gh skill install greenfield-inc/Pane spike --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/greenfield-inc/Pane.git skills-src && mkdir -p .claude/skills && cp -r skills-src/main/src/services/paneChatBundle/skills/spike .claude/skills/spike && 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/

Facts

Skill name
spike
GitHub stars
527
Token cost
~359 tokens
SKILL.md length
192 words
Files
1
Skills in repo
35
Repo updated
First seen
Licence
Custom licence

At a glance

Use only when a decision is blocked on a fact nobody has. An agent skill from greenfield-inc/Pane.

  • Works in 5 steps: Write the question so the answer is a… → Set a time box and a method. Throwaway… → If the question is answerable from the… → …
  • SKILL.md covers Steps, Format and Banned
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Spike is an agent skill from greenfield-inc/Pane. Use only when a decision is blocked on a fact nobody has. One time-boxed question, one answer.

Its SKILL.md is about 360 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

The repository describes itself as: Terminal-first, open-source AI agent manager for any CLI agent (agent agnostic), any OS (mac, windows, linux). The Open-Source Agentic Development Environment for running…

Example prompts

  • “/spike”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. Write the question so the answer is a fact, not an opinion. "Can the queue delay a job by 24 hours without a new table?" is a spike. "What…
  2. Set a time box and a method. Throwaway code is allowed and expected.
  3. If the question is answerable from the web or docs, answer it with the research-web skill. If it needs the repo or a running system, give…
  4. Record the answer and the evidence.
  5. Feed the answer back into the options document under "What we learned". Re-rank the options if it changes them.

What it can do on your machine

Read from SKILL.md and the folder at commit 0c471a3. 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

Spike loads about 359 tokens when it runs. Until then it costs about 25 tokens; SKILL.md has 192 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~25
When it runs · the whole SKILL.md, loaded when a task matches
~359

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 192 words (~359 tokens).

“A spike answers one question so a decision can be made. Write one only when a decision is actually blocked on it.”

— opening of SKILL.md by greenfield-inc, Custom licence
name
spike

Read the full SKILL.md on GitHub

Files

Just SKILL.md in main/src/services/paneChatBundle/skills/spike of greenfield-inc/Pane.

Open the folder on GitHubat commit 0c471a3

Compare with similar skills

Spike 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.

Spike compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Spike this skillgreenfield-inc/Pane527—~359Automated safety check: PassCustom licence
Spikeopenclaw/openclaw392k1 repos~473Automated safety check: PassMIT
Block Kitopenclaw/openclaw392k—~624Automated safety check: PassMIT
Fact Check X Unifiedsickn33/agentic-awesome-skills47k1 repos~1.7kAutomated safety check: PassApache-2.0
Fact Check X Completesickn33/agentic-awesome-skills47k1 repos~2.3kAutomated safety check: PassApache-2.0
Render Blockingthedaviddias/Front-End-Checklist74k—~430Automated safety check: PassMIT

Similar skills

  • Spike

    openclaw/openclaw

    Run throwaway prototypes to validate feasibility, compare approaches, and report a verdict.

    392k GitHub starsUsed in 1 repo~473 tokens
    DevelopmentAuto-check passed

  • Block Kit

    openclaw/openclaw

    Use proactively for structured or interactive Slack replies, and when asked to author or validate native Slack Block Kit JSON.

    392k GitHub stars~624 tokensUpdated today
    Auto-check passed

  • Fact Check X Unified

    sickn33/agentic-awesome-skills

    Fact-Check-X 流程编排能力，依次组织各方答案汇总、各方答案聚合（未核验）、权威核验后的最终答案和各方答案测评，生成可打开、可审计、可迁移的阶段产物与完整报告包。

    47k GitHub starsUsed in 1 repo~1.7k tokens
    Research & ScienceAuto-check passed

  • Fact Check X Complete

    sickn33/agentic-awesome-skills

    Compare claims from one or more AI answers, verify their citations against public primary sources, and produce an evidence-linked fact-check report without installing a bundled browser runtime.

    47k GitHub starsUsed in 1 repo~2.3k tokens
    Research & ScienceAuto-check passed

  • Render Blocking

    thedaviddias/Front-End-Checklist

    A skill your agent uses when auditing slow page loads, heavy assets, or rendering delays related to Eliminate render-blocking resources.

    74k GitHub stars~430 tokensUpdated 3 days ago
    Frontend & DesignAuto-check passed

  • Fact Check

    THU-MAIC/OpenMAIC

    Improve factual reliability while creating or reviewing a course or supplied content.

    40k GitHub stars~1.9k tokensUpdated today
    Research & ScienceAuto-check: warnings

More from greenfield-inc/Pane

All 35 skills in this repo

  • Page

    greenfield-inc/Pane

    House standard for any HTML page written for a person. An agent skill from greenfield-inc/Pane.

    527 GitHub stars~759 tokensUpdated today
    Auto-check passed

  • Session Trace

    greenfield-inc/Pane

    Publish an agent session as a readable trace page in Grain, with the story, key moments, every request and step on a timeline, subagents, and the pull requests it opened.

    527 GitHub stars~836 tokensUpdated today
    Auto-check passed

  • Discussion

    greenfield-inc/Pane

    Have an interactive discussion about a topic, approach, feature, or bug without making code changes.

    527 GitHub stars~666 tokensUpdated today
    Auto-check passed

  • Excalidraw PR Diagrams

    greenfield-inc/Pane

    Create Excalidraw diagram JSON files and PR visual overviews that make visual arguments.

    527 GitHub stars~9.4k tokensUpdated today
    Auto-check passed

  • HTML Explainer

    greenfield-inc/Pane

    The house standard for any skill that renders an HTML page for a person to read, covering design tokens, typography, components, diagrams, and quality gates so every generated page shares one calm…

    527 GitHub stars~1.6k tokensUpdated today
    Auto-check: notes

  • Pane Work

    greenfield-inc/Pane

    Answer questions about the user's own work in Pane, read-only.

    527 GitHub stars~1.8k tokensUpdated today
    Auto-check passed

Questions about Spike

What does Spike do?

Use only when a decision is blocked on a fact nobody has. An agent skill from greenfield-inc/Pane. Spike is an agent skill from greenfield-inc/Pane. Use only when a decision is blocked on a fact nobody has.

How do I install Spike in Claude Code?

Run `npx skills add greenfield-inc/Pane --skill spike -a claude-code`. Or copy the skill folder (main/src/services/paneChatBundle/skills/spike in greenfield-inc/Pane) into .claude/skills/spike in your project. Claude Code loads it when a task matches its description.

How do I install Spike in Codex?

Run `npx skills add greenfield-inc/Pane --skill spike -a codex`. Or copy the skill folder (main/src/services/paneChatBundle/skills/spike in greenfield-inc/Pane) into .agents/skills/spike in your project. Codex loads it when a task matches its description.

Can I use Spike 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 greenfield-inc/Pane --skill spike -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/spike, .gemini/skills/spike, .github/skills/spike and .opencode/skills/spike in your project.

What does Spike need to run?

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

Does Spike 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 Spike 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 Spike use?

Spike has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Spike use?

About 359 tokens (SKILL.md is roughly 1.4k 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 Spike?

Skills that share tags, products or a category with Spike: Spike (openclaw/openclaw, 392k stars), Block Kit (openclaw/openclaw, 392k stars), Fact Check X Unified (sickn33/agentic-awesome-skills, 47k stars) and Fact Check X Complete (sickn33/agentic-awesome-skills, 47k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Spike?

greenfield-inc (a GitHub organization) maintains it in greenfield-inc/Pane, which has 527 GitHub stars. The repository holds 35 skills in this directory. The repository was last updated on October 10, 2026.

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