scholar-mcp: Skill for Claude Code

.agents/skills/researching-references/SKILL.md

researching-references is a skill for Claude Code, Codex from pvliesdonk/scholar-mcp. It costs 99 tokens per session (2,456 once invoked), scanned A, a copy of researching-references, MIT.

A research workflow for recording how an outside system behaves, such as a file format, programming language, Git, protocol, or vendor API, in a dated project reference.

In plain words
What is it for?
Use it to create or refresh repository reference pages about external rules, errors, compatibility details, and version-specific behavior.
Why use it?
It replaces guesses or outdated memory with evidence from primary sources before code depends on that behavior.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents; installed under .agents/ (shared by several agents).

This is pvliesdonk/scholar-mcp's own configuration. It tells Claude Code and Codex how to work on scholar-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything scholar-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to pvliesdonk/scholar-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/pvliesdonk/scholar-mcp/main/.agents/skills/researching-references/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/pvliesdonk/scholar-mcp

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 researching-references

README.md
[![agentmods](https://agentmods.dev/badge/skills/pvliesdonk/scholar-mcp/researching-references/github.svg)](https://agentmods.dev/skills/pvliesdonk/scholar-mcp/researching-references)
Your own site
<a href="https://agentmods.dev/skills/pvliesdonk/scholar-mcp/researching-references"><img src="https://agentmods.dev/badge/skills/pvliesdonk/scholar-mcp/researching-references/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 researching-references

Your own site · 80×15
<a href="https://agentmods.dev/skills/pvliesdonk/scholar-mcp/researching-references"><img src="https://agentmods.dev/badge/skills/pvliesdonk/scholar-mcp/researching-references.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 99 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,456 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 100% copy Near-identical to another mod 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 $0.00099 $0.02456
Opus 5.5 $0.00040 $0.00982
Sonnet 5.5 $0.00020 $0.00491
Haiku 4.5 $0.00010 $0.00246

Measured 24d ago against content hash 787f48962615, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

researching-references 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 24d 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.

Origin

This is a copy

100% identical to researching-references — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.agents/skills/researching-references/SKILL.md · 158 lines

How it starts

The opening of the file, as written. The whole thing — 158 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Researching references

A reference is a page under docs/design/reference/ that records how something outside this repository behaves: the rules of a markdown dialect, what a git remote refuses and how it says so, the quirks of a file format or a vendor API. It exists because the alternative is worse in a specific way: an agent that meets such a question mid-task answers it from parametric memory, which is consistently incomplete, outdated, or wrong in the details that matter, and the design doc only ever records the facets that already broke. Six issues about one rule set, each rediscovering one facet, is the failure this skill exists to stop.

A reference is not the design doc. docs/design/ says what this project does and why; a reference says what the world does, with the evidence. When the two disagree on purpose, the reference records the world and links to the design decision that departs from it.

When to write or refresh one

  • A bug or feature turns on an external behaviour and no reference under docs/design/reference/ covers it. Write one before fixing: the fix is then a consequence of the reference, not a guess the reference later contradicts.
  • A reference exists but its stale_after date has passed, its subject_version is no longer what the project targets, or its status is deprecated without a successor. A stale reference is re-researched, never trusted and never silently extended.
  • A bug turns out to be rooted in a facet the reference lacks. The fix closes with a reference entry, not only a narrative in the design doc.

Do not write one for the project's own behaviour, for anything a single link to a stable spec section covers, or as a tutorial. Scope a reference to what the code depends on: a git reference for a module that only pushes and reads history covers refusals, identity, and credentials, not branching strategy.

What a reference looks like

Read the full file on GitHub · 158 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 24d ago Changed 787f48962615
  2. 1mo ago First seen · 158 lines · 99 tokens per session scan A a4df2b336638

Subscribe to this mod's changes

researching-references is a skill published in the GitHub repository pvliesdonk/scholar-mcp (2 stars, last pushed yesterday), licensed MIT. It adds 99 tokens to every session and 2,456 once invoked, about $0.0004 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to researching-references, differing in 0 lines, and is treated as a copy.

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