writing-scripts SKILL.md skillB
writing-scripts from celigo/ai is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add celigo/ai/writing-scripts@git:20261017.e6de85aPins git:20261017.e6de85a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- B, 16 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- celigo/ai
- Path
skills/writing-scripts/SKILL.md- Versions recorded
- 5
- Latest version
- git:20261017.e6de85a, committed Oct 17, 2026
- First version recorded
- May 20, 2026
- Size
- 24,221 bytes
- Repository stars
- 4
- License
- MIT
Write Celigo JavaScript hook scripts -- preSavePage, preMap, postMap, postSubmit, postResponseMap, filter, transform, branching, handleRequest. Use when creating or editing scripts, choosing the right hook point, understanding input/output data shapes, or debugging script behavior.
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
<!-- TIER:1 --> # Writing Scripts A script is a **JavaScript function** that runs at a specific hook point in the Celigo data pipeline. Scripts handle logic that expressions, filters, and visual mappings cannot -- complex conditionals, cross-record calculations, API calls within the pipeline, and custom routing. Concerns when writing a script: - **Choosing the right hook point** -- which function type matches what you're trying to accomplish - **Input/output contracts** -- what `options` contains and what the function must return (array length rules are strict) - **Expression alternative** -- filter, transform, and output filter have expression-based alternatives that don't require a script; prefer expressions when possible - **Available modules** -- scripts can `import` three built-in modules: `integrator-api` (call Celigo APIs), `dayjs` (date/time manipulation), and `sjcl` (Stanford JavaScript Crypto Library for hashing/encryption) - **One script, many functions** -- a single script resource can contain multiple exported functions, each wired independently to different hook points Used across flows, APIs, and tools. ## Hook Points …
Read the whole file at its exact version.
How to install
mdr add celigo/ai/writing-scripts@sha256:3e03c96c08a89975The line at the top of this page pins the label git:20261017.e6de85a, 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_xoiupb3hgjzuigic)
1 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 5 versions of this file, between May 20, 2026 and Oct 17, 2026, about one every 37 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261017.e6de85a latest | 2026-10-17 | e6de85a | 24,221 B | B | view · diff |
| git:20261017.e0e159f | 2026-10-17 | e0e159f | 24,031 B | B | view · diff |
| git:20260722.b000fd6 | 2026-07-22 | b000fd6 | 22,896 B | B | view · diff |
| git:20260618.593a4ab | 2026-06-18 | 593a4ab | 16,379 B | B | view · diff |
| git:20260520.7414ff1 | 2026-05-20 | 7414ff1 | 16,377 B | B | view |
Audit of the latest version
- fail: No script tag (matched: <script)
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (24221 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
Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.
Source
celigo/ai · 4 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_xoiupb3hgjzuigic GET https://markdownregistry.com/api/v1/resolve?ref=celigo/ai/writing-scripts GET https://markdownregistry.com/api/v1/blob/3e03c96c08a89975a7323bc8f4d1adac8cb31e694c04d5f71fe0c035a46f7ec8
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.