hepdata

hepdata is a skill for Claude Code, Codex from agentlas-ai/agentlas-desktop. It costs 35 tokens per session (358 once invoked), scanned A, original, Apache-2.0.

A tool for retrieving published high-energy-physics measurements from HEPData, a public repository of research data tables. It can also normalize table JSON while preserving labels, missing values, qualifiers, and uncertainties.

In plain words
What is it for?
Use it to fetch HEPData record information or versioned tables, normalize supplied table data, and prepare labeled series for supported visual or statistical analysis.
Why use it?
It avoids losing important measurement details when research tables are fetched or prepared for analysis. Version and provenance records help keep the data traceable.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: $skill-name invocation.

Good fit Use it to fetch HEPData record information or versioned tables, normalize supplied table data, and prepare labeled series for supported visual or statistical analysis.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/agentlas-ai/agentlas-desktop/hepdata
Install

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.

Any agent
npx skills add agentlas-ai/agentlas-desktop --skill hepdata
Clone the repo
git clone --depth 1 https://github.com/agentlas-ai/agentlas-desktop

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for hepdata

README.md
[![agentmods](https://agentmods.dev/badge/skills/agentlas-ai/agentlas-desktop/hepdata/github.svg)](https://agentmods.dev/skills/agentlas-ai/agentlas-desktop/hepdata)
Your own site
<a href="https://agentmods.dev/skills/agentlas-ai/agentlas-desktop/hepdata"><img src="https://agentmods.dev/badge/skills/agentlas-ai/agentlas-desktop/hepdata/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.

agentmods 80×15 button for hepdata

Your own site · 80×15
<a href="https://agentmods.dev/skills/agentlas-ai/agentlas-desktop/hepdata"><img src="https://agentmods.dev/badge/skills/agentlas-ai/agentlas-desktop/hepdata.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 358 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00035 $0.00358
Opus 5.5 $0.00014 $0.00143
Sonnet 5.5 $0.00007 $0.00072
Haiku 4.5 $0.00003 $0.00036

Measured 1mo ago against content hash 122ad8686998, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

hepdata scanned grade A with 0 findings 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 1mo 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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/agentlas-physics/skills/hepdata/SKILL.md · 25 lines

What it actually says

HEPData

  1. Call fetch_hepdata_record with an exact ins... record id. Request table metadata only when needed.
  2. Call fetch_hepdata_table with the exact record id, table name, and required known record version. If the provider refuses automated access, surface the refusal; never scrape or bypass a challenge.
  3. Use normalize_hepdata_table only for an already available JSON body. Supply its version when known; a missing version remains explicitly null rather than being guessed.
  4. Preserve the record URI, version-pinned table URL, DOI citations, provenance receipt, raw-response hash, and normalized hash.
  5. Hand rendererProjection.series to a host-provided Vega lab only when installed. The projection keeps labeled components separate. Use $hepdata-chi-square only when the research model explicitly declares selected labels mutually independent; never infer covariance or correlations.

Outputs

  • HEPData record metadata or a deterministic table preserving independent/dependent variables, null and empty-string missing measurements, qualifiers, symmetric/asymmetric errors, relative percentages, one-sided errors, and inclusive measurements with no independent variable.
  • A renderer projection with numeric bin centers and per-component error-bar endpoints while retaining all source scalars alongside it.

Verification

  • The response record id matches the requested ins... id.
  • Every variable has the same bounded point count.
  • Every uncertainty retains its label and symmetric/asymmetric form.
  • Relative and one-sided uncertainty projections retain raw values and never turn a missing side into zero.
Changes

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.

  1. 1mo ago First seen · 25 lines · 35 tokens per session scan A 122ad8686998

Subscribe to this mod's changes

hepdata is a skill published in the GitHub repository agentlas-ai/agentlas-desktop (6 stars, last pushed yesterday), licensed Apache-2.0. It adds 35 tokens to every session and 358 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-04.

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