Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add wentorai/research-plugins --skill software-heritage-apigit clone --depth 1 https://github.com/wentorai/research-pluginsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/wentorai/research-plugins/software-heritage-api)<a href="https://agentmods.dev/skills/wentorai/research-plugins/software-heritage-api"><img src="https://agentmods.dev/badge/skills/wentorai/research-plugins/software-heritage-api/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/wentorai/research-plugins/software-heritage-api"><img src="https://agentmods.dev/badge/skills/wentorai/research-plugins/software-heritage-api.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00016 | $0.01591 |
| Opus 5 | $0.00008 | $0.00796 |
| Sonnet 5 | $0.00003 | $0.00318 |
| Haiku 4.5 | $0.00002 | $0.00159 |
Grade A, and why
software-heritage-api scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl "https://archive.softwareheritage.org/api/1/origin/search/scikit-learn/?limit=10" How it starts
The opening of the file, as written. The whole thing — 201 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Software Heritage API
Overview
Software Heritage is the universal archive of software source code, preserving 18B+ source files from 280M+ software origins (GitHub, GitLab, Bitbucket, CRAN, PyPI, Debian, etc.). Each artifact receives a persistent SWHID (SoftWare Heritage IDentifier) for reliable citation in research. The API enables code search, provenance tracking, and historical analysis. Free, no authentication for read access.
API Endpoints
Base URL
https://archive.softwareheritage.org/api/1
Search Origins (Repositories)
# Search for repositories
curl "https://archive.softwareheritage.org/api/1/origin/search/scikit-learn/?limit=10"
# Get origin metadata
curl "https://archive.softwareheritage.org/api/1/origin/https://github.com/scikit-learn/scikit-learn/get/"
# List visits (snapshots) of an origin
curl "https://archive.softwareheritage.org/api/1/origin/https://github.com/scikit-learn/scikit-learn/visits/"
Retrieve Content
# Get a specific file by its SHA1 hash
curl "https://archive.softwareheritage.org/api/1/content/sha1:adc83b19e793491b1c6ea0fd8b46cd9f32e592fc/"
# Get raw file content
curl "https://archive.softwareheritage.org/api/1/content/sha1:adc83b19e793491b1c6ea0fd8b46cd9f32e592fc/raw/"
# Get directory listing
curl "https://archive.softwareheritage.org/api/1/directory/{sha1_git}/"
Resolve SWHIDs
# Resolve a SWHID to its object
curl "https://archive.softwareheritage.org/api/1/resolve/swh:1:cnt:adc83b19e793491b1c6ea0fd8b46cd9f32e592fc/"
# Get snapshot
curl "https://archive.softwareheritage.org/api/1/snapshot/{sha1_git}/"
# Get revision (commit)
curl "https://archive.softwareheritage.org/api/1/revision/{sha1_git}/"
Save Code Now
# Request archival of a repository
curl -X POST "https://archive.softwareheritage.org/api/1/origin/save/git/url/https://github.com/user/repo/"
SWHID Format
SoftWare Heritage persistent IDentifiers:
swh:1:{type}:{hash}
Types:
cnt → Content (file)
dir → Directory
rev → Revision (commit)
rel → Release (tag)
snp → Snapshot
Examples:
swh:1:cnt:94a9ed024d3859793618152ea559a168bbcbb5e2 (file)
swh:1:rev:309cf2674ee7a0749978cf8265ab91a60aea0f7d (commit)
swh:1:snp:c7c108084bc0bf3d81436bf980b46e98571c7b17 (snapshot)
With qualifiers:
swh:1:cnt:{hash};origin=https://github.com/user/repo;visit=swh:1:snp:{hash};path=/src/main.py
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 7d ago First seen · 201 lines · 16 tokens per session scan A 8febacc0ef04
software-heritage-api is a skill published in the GitHub repository wentorai/research-plugins (291 stars, last pushed 2mo ago), licensed MIT. It adds 16 tokens to every session and 1,591 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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