ca-spike SKILL.md skillA
ca-spike from arbiterforge/codearbiter is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add arbiterforge/codearbiter/ca-spike@git:20261024.1bc5502Pins git:20261024.1bc5502 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- arbiterforge/codearbiter
- Path
plugins/ca-codex/skills/ca-spike/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261024.1bc5502, committed Oct 24, 2026
- First version recorded
- Jul 12, 2026
- Size
- 2,907 bytes
- Repository stars
- 152
- License
- AGPL-3.0
Exploratory spike on a throwaway branch — answer a named question with disposable code. Never merges; exits to a findings note or $ca-feature.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# $ca-spike — exploratory spike
The sanctioned lane for "I need to write code to find out." Spike code is disposable by contract:
it never merges, never PRs, and never becomes the implementation. What survives a spike is the
*answer*, written down — the code is burned.
## Flow
1. **Name the question** — a spike without a falsifiable question is just freelancing. Restate
`$ARGUMENTS` as the question the spike answers and the timebox (default: one session). STOP for
the user's confirmation.
2. **Branch** — create `spike/<slug>` from the current branch. All exploratory code and experiments
stay on it; only the completed findings file may later cross back to the parent.
3. **Explore** — no `tdd`, no plan, no review fleet. Two rules survive even here: no secret leaves
the approved store, and no irreversible operation (prod data, destructive migration) runs from a
spike.
4. **Exit — exactly one of:**
- **Answered** → write the findings to `<project-root>/.codearbiter/spikes/<slug>.md`
(the question, what was tried, the answer, what it implies), and commit only that findings file
on `spike/<slug>`. Return to the parent branch and run
…Read the whole file at its exact version.
How to install
mdr add arbiterforge/codearbiter/ca-spike@sha256:865bf543b221a07dThe line at the top of this page pins the label git:20261024.1bc5502, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_qqi5t5hhhw74653t)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between Jul 12, 2026 and Oct 24, 2026, about one every 26 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261024.1bc5502 latest | 2026-10-24 | 1bc5502 | 2,907 B | A | view · diff |
| git:20260830.00ec49f | 2026-08-30 | 00ec49f | 2,882 B | A | view · diff |
| git:20260813.debb49d | 2026-08-13 | debb49d | 2,865 B | A | view · diff |
| git:20260808.362892a | 2026-08-08 | 362892a | 2,251 B | A | view · diff |
| git:20260712.eee3949 | 2026-07-12 | eee3949 | 2,193 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (2907 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
arbiterforge/codearbiter · 152 stars · license AGPL-3.0 · pushed 2026-11-07 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_qqi5t5hhhw74653t GET https://markdownregistry.com/api/v1/resolve?ref=arbiterforge/codearbiter/ca-spike GET https://markdownregistry.com/api/v1/blob/865bf543b221a07da2cccb531ad5e9a71c9b7c7cdf4a51cedaca2f0b92daada7
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.
More from arbiterforge/codearbiter
Every file in arbiterforge/codearbiter