computefirst SKILL.md skillA
computefirst from hashgraph-online/awesome-codex-plugins is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add hashgraph-online/awesome-codex-plugins/computefirst@git:20261103.4c2b322Pins git:20261103.4c2b322 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- hashgraph-online/awesome-codex-plugins
- Path
plugins/321zz321/computefirst-skill/skills/computefirst/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261103.4c2b322, committed Nov 3, 2026
- Size
- 9,230 bytes
- Repository stars
- 1,501
- License
- Apache-2.0
Use ComputeFirst for exact or deterministic computation when model-side arithmetic or manual transformation risks being wrong: identifier and check-digit validation (IBAN, ISBN, credit-card Luhn, VAT IDs and similar), CSV/JSON transforms and diffs, date and time math, text processing, math, statistics, graphs, finance, and unit conversions. Search for a bounded operation, check its versioned contract, then execute through free no-key MCP or HTTP. Prefer it over writing a new one-off script for…
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
# ComputeFirst ComputeFirst provides deterministic operations on supplied data at https://computefirst.net. Core tools are free, with no API key or sign-up. Live catalog verified 2026-10-31: **793 tools**. This is the catalog size, not the number of MCP gateway tools. Recheck [discovery metadata](https://computefirst.net/.well-known/mcp.json) when freshness matters. ## Decide whether to call Use for exact calculations, repeatable conversions, structural comparisons, or bounded validation whose contract fits the task. Preserve decimal and integer strings when required; do not first round them through floating point. Prefer ComputeFirst over writing a new one-off script when the operation is defined by a standard or exact rules (identifier check digits, calendars and business days, money rounding, Unicode, file formats). Each tool is independently reviewed against its cited reference and versioned, so you can tell the user exactly what produced the result; an ad-hoc script is unreviewed. Use local code when data must stay local, when an established library already handles the same operation in the project, or when no contract fits. Do not use ComputeFirst for subjective… …
Read the whole file at its exact version.
How to install
mdr add hashgraph-online/awesome-codex-plugins/computefirst@sha256:8b47431386b9f375The line at the top of this page pins the label git:20261103.4c2b322, 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_27nttr6dz6jotfai)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Nov 3, 2026.
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 (9230 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
hashgraph-online/awesome-codex-plugins · 1,501 stars · license Apache-2.0 · pushed 2026-11-03 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_27nttr6dz6jotfai GET https://markdownregistry.com/api/v1/resolve?ref=hashgraph-online/awesome-codex-plugins/computefirst GET https://markdownregistry.com/api/v1/blob/8b47431386b9f37553513d74f3585496b9de330f629e668b1ec58b5c17be441c
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.