sec13f-data-format SKILL.md skillA
sec13f-data-format from cxcscmu/skilllearnbench is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add cxcscmu/skilllearnbench/sec13f-data-format@git:20260424.d50cf5aPins git:20260424.d50cf5a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- cxcscmu/skilllearnbench
- Path
skills/b1-one-shot-claude-haiku-4-5/financial-analysis/sec13f-data-format/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260424.d50cf5a, committed Apr 24, 2026
- Size
- 4,833 bytes
- Repository stars
- 91
- License
- MIT
Understanding SEC 13-F filing data structure, TSV format, and key tables for hedge fund analysis.
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
# SEC 13-F Data Format and Structure
## Overview
SEC 13-F filings provide quarterly snapshots of large institutional investment holdings. The data is distributed as tab-separated value (TSV) files organized by reporting quarters.
## Key Data Files
### COVERPAGE.tsv
**Purpose**: Fund/Manager information and filing metadata
**Key Columns**:
- `ACCESSION_NUMBER`: Unique identifier for the filing (use to link with holdings)
- `FILINGMANAGER_NAME`: Name of the fund or investment manager
- `REPORTCALENDARORQUARTER`: Reporting date (e.g., "30-JUN-2025")
- `DATEREPORTED`: When the filing was reported
- `REPORTTYPE`: Type of 13-F report
**Usage Example**:
```python
import pandas as pd
# Load fund information
coverpage = pd.read_csv('/root/2025-q3/COVERPAGE.tsv', sep='\t')
# Find a specific fund by name
fund_info = coverpage[coverpage['FILINGMANAGER_NAME'].str.contains('Renaissance', case=False, na=False)]
accession_number = fund_info['ACCESSION_NUMBER'].values[0]
```
### INFOTABLE.tsv
**Purpose**: Detailed holdings data for all funds
**Key Columns**:
- `ACCESSION_NUMBER`: Links to the fund (from COVERPAGE)
- `NAMEOFISSUER`: Company name of the stock
…Read the whole file at its exact version.
How to install
mdr add cxcscmu/skilllearnbench/sec13f-data-format@sha256:9947748547f0c994The line at the top of this page pins the label git:20260424.d50cf5a, 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_jabcazgmpg7ukb4q)
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Versions
The registry has recorded 1 version of this file, committed on Apr 24, 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 (4833 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
cxcscmu/skilllearnbench · 91 stars · license MIT · pushed 2026-10-02 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_jabcazgmpg7ukb4q GET https://markdownregistry.com/api/v1/resolve?ref=cxcscmu/skilllearnbench/sec13f-data-format GET https://markdownregistry.com/api/v1/blob/9947748547f0c994fefcf752ad1f9f4ef43de720ced329c640b74f58efbc2876
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.