parse-csv skillA
parse-csv is agent-read markdown (skill) from mrbinnacle/skill-harness: Use before opening a CSV where a column may hold IDs. Quoting does NOT stop a spreadsheet's number parse (silently applied); it drops every leading zero. Check the column type first..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
# parse-csv This card ships three parts: an explanation of the trap, prevention-by-recipe for adopter-owned enforcement, and the recovery runbook below. It deliberately ships no executable script. Enforcement that must fire belongs in the adopter's environment; the card remains the model-invocable reference. ## The trap A spreadsheet application opens a CSV and applies number parsing **before the user sees the data**. Quoting does not stop this: `="00123"` is still parsed as the number `123`. The parse is silent — no warning, no undo, no format column dialogue. Every cell in the affected column has its leading zeros stripped. When an ID column (phone numbers, postal codes, product SKUs, employee badges) is parsed as numbers, every leading zero is lost. A downstream lookup that expects `"00123"` receives `123`, the join silently fails or matches the wrong row, and the corruption is visible only when a user notices a missing record. ## When this fires Any of these conditions: - The column contains IDs with leading zeros (phone, postal, SKU, badge) - The column contains numeric strings wider than 15 digits (IEEE 754 precision loss) …
Read the whole file at its exact version.
How to install
mdr add mrbinnacle/skill-harness/parse-csv@git:20260923.bd0c453mdr add mrbinnacle/skill-harness/parse-csv@sha256:8e4658087ea6be3ePin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_4yfloibopzgs4ouu)
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Versions
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 (4777 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
mrbinnacle/skill-harness · 9 stars · license MIT · pushed 2026-09-23 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_4yfloibopzgs4ouu GET https://markdownregistry.com/api/v1/resolve?ref=mrbinnacle/skill-harness/parse-csv GET https://markdownregistry.com/api/v1/blob/8e4658087ea6be3e2598b22b5d6c7cfc78d59f22a2aa240077380e1a44990499
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