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Claude Skills

The open format is called Agent Skills and works in Claude Code, Codex, Cursor and other agents — most people know it as Claude Skills.

Every Agent Skill we could find on GitHub, deduplicated by content. 79 566 files from 1 758 authors, of which 61 913 are unique — the rest is the same skill repackaged into someone else's repository. For each one: what it weighs in tokens, whether it ships runnable scripts, and which MCP servers it needs.

61 913
unique skills
out of 79 566 files found on GitHub
17 653
are copies
same content, someone else's repository
1 739
tokens, median
what a typical skill costs you in context
7 886
name collisions
two skills with one name cannot sit side by side

18 001–18 060 of 61 913

page 301 of 1 032
Citation Verifier
by WILLOSCAR

| Generate and verify BibTeX entries from paper notes, writing `citations/ref.bib` and `citations/verified.jsonl`.

4k tokens scripts
Claim Evidence Matrix
by WILLOSCAR

| Build a section-by-section claim–evidence matrix (`outline/claim_evidence_matrix.md`) from the outline and paper notes.

3k tokens scripts
Claims Extractor
by WILLOSCAR

| Use when a review workspace has manuscript text and needs a traceable claim ledger.

982 tokens scripts
Claim Matrix Rewriter
by WILLOSCAR

| Rewrite `outline/claim_evidence_matrix.md` as a projection/index of evidence packs (NO PROSE), so claims/axes are driven by `outline/evidence_drafts.jsonl` rather than outline placeholders.

3k tokens scripts
Dedupe Rank
by WILLOSCAR

| Use when a broad paper candidate pool needs deterministic deduplication and a stable core set.

6k tokens scripts
Deliverable Selfloop
by WILLOSCAR

Score an existing reader-facing deliverable and emit a deterministic PASS/FAIL scorecard plus bounded repair plan; use after synthesis, not to rewrite content.

4k tokens scripts
Concept Graph
by WILLOSCAR

| Use when an approved tutorial spec exists and the run needs a deterministic prerequisite graph before module planning.

669 tokens scripts
Draft Polisher
by WILLOSCAR

|

6k tokens scripts
Evaluation Anchor Checker
by WILLOSCAR

| Audit and rewrite evaluation/numeric claims to ensure they carry minimal protocol context (task + metric + constraint) and avoid underspecified model naming.

5k tokens scripts
Evidence Auditor
by WILLOSCAR

| Use when `paper-review` needs a claim-by-claim evidence gap report grounded in an extracted claim ledger.

1k tokens scripts
Evidence Binder
by WILLOSCAR

| Bind addressable evidence IDs from `papers/evidence_bank.jsonl` to each subsection (H3), producing `outline/evidence_bindings.jsonl`.

7k tokens scripts
Evidence Draft
by WILLOSCAR

|

25k tokens scripts
Evidence Selfloop
by WILLOSCAR

|

6k tokens scripts
Exercise Builder
by WILLOSCAR

| Use when a tutorial module plan exists but each module still needs a verifiable teaching loop.

674 tokens scripts
Extraction Form
by WILLOSCAR

| Use when `evidence-review` has screened includes and needs a schema-aligned extraction table.

2k tokens scripts
Front Matter Writer
by WILLOSCAR

| Write the survey's front matter files (Abstract, Introduction, Related Work, Discussion, Conclusion) in paper voice, with high citation density and a single evidence-policy paragraph.

24k tokens scripts
Global Reviewer
by WILLOSCAR

|

6k tokens scripts
Grad Paragraph
by WILLOSCAR

| Write one survey-quality paragraph from evidence packs (tension → contrast → evaluation anchor → limitation).

2k tokens
Human Checkpoint
by WILLOSCAR

Review and record one pending human checkpoint in a research Workspace; use when a HUMAN Unit is blocked on an `Approve C*` decision, and never treat silence or artifact existence as approval.

1k tokens scripts
Idea Screener
by WILLOSCAR

| Screen the direction pool with a discussion-first scoring pass, writing `output/trace/IDEA_SCREENING_TABLE.md`.

913 tokens scripts
Idea Memo Writer
by WILLOSCAR

| Synthesize the shortlist into a discussion-ready research idea brainstorm memo, writing `output/REPORT.md`, `output/APPENDIX.md`, and `output/REPORT.json`.

2k tokens scripts
Idea Direction Generator
by WILLOSCAR

| Generate a compact pool of discussion-worthy research directions from the signal table, writing `output/trace/IDEA_DIRECTION_POOL.md`.

999 tokens scripts
Idea Brief
by WILLOSCAR

| Lock an ideation run into a single-source-of-truth brainstorm brief (`output/trace/IDEA_BRIEF.md`) and a replayable multi-query plan (`queries.md`).

6k tokens scripts
Idea Shortlist Curator
by WILLOSCAR

| Converge the screened direction pool into a small, discussion-ready shortlist, writing `output/trace/IDEA_SHORTLIST.md`.

4k tokens scripts
Idea Signal Mapper
by WILLOSCAR

| Map paper notes + taxonomy into a signal table of tensions, missing pieces, and promising academic axes for brainstorm discussion. Writes `output/trace/IDEA_SIGNAL_TABLE.md`.

733 tokens scripts
Keyword Expansion
by WILLOSCAR

| Expand and refine search keywords (synonyms, acronyms, exclusions) and update `queries.md`.

405 tokens
Limitation Weaver
by WILLOSCAR

| Rewrite limitation passages so the paper keeps limitations without falling into count-based slot phrases (e.g., \"Two limitations…\") across many H3s.

938 tokens
Latex Compile QA
by WILLOSCAR

| Compile a LaTeX project and run basic QA (missing refs, bib errors, broken citations), producing `latex/main.pdf` and a build report.

3k tokens scripts
Literature Engineer
by WILLOSCAR

| Multi-route literature expansion + metadata normalization for evidence-first surveys.

18k tokens scripts
Latex Scaffold
by WILLOSCAR

| Scaffold a LaTeX project (`latex/main.tex`, optional bibliography wiring, structure) from an existing Markdown draft.

6k tokens scripts
Manuscript Ingest
by WILLOSCAR

| Use when `paper-review` needs a canonical manuscript text artifact before claim extraction.

722 tokens scripts
Module Planner
by WILLOSCAR

| Use when a tutorial concept DAG exists and the run needs an ordered teaching plan with objectives and outputs.

749 tokens scripts
Module Source Coverage
by WILLOSCAR

| Use when a tutorial module plan exists and the run needs an auditable module-to-source grounding file before prose.

698 tokens scripts
Novelty Matrix
by WILLOSCAR

| Use when `paper-review` needs overlap/delta positioning against provided related work.

1k tokens scripts
Outline Refiner
by WILLOSCAR

| Planner-pass coverage + redundancy report for an outline+mapping, producing `outline/coverage_report.md` and `outline/outline_state.jsonl`.

7k tokens scripts
Opener Variator
by WILLOSCAR

|

2k tokens scripts
Outline Budgeter
by WILLOSCAR

|

856 tokens
Paper Notes
by WILLOSCAR

| Write structured notes for each paper in the core set into `papers/paper_notes.jsonl` (summary/method/results/limitations).

19k tokens scripts
Outline Builder
by WILLOSCAR

| Convert a taxonomy (`outline/taxonomy.yml`) into a bullet-only outline (`outline/outline.yml`) with sections/subsections.

7k tokens scripts
PDF Text Extractor
by WILLOSCAR

| Download PDFs (when available) and extract plain text to support full-text evidence, writing `papers/fulltext_index.jsonl` and `papers/fulltext/*.txt`.

5k tokens scripts
Paragraph Curator
by WILLOSCAR

| Deterministically compact final H3 bodies to the active delivery profile's paragraph budget without deleting prose or changing citation-block order.

2k tokens scripts
Pipeline Auditor
by WILLOSCAR

|

11k tokens scripts
Pipeline Router
by WILLOSCAR

Route an unbound research Goal to one Workflow or materialize its initial C0 kickoff block; use during initial binding, not for later checkpoint summaries or approval.

2k tokens scripts
Protocol Writer
by WILLOSCAR

| Use when `evidence-review` needs an operational protocol before screening and extraction.

1k tokens scripts
Post Merge Voice Gate
by WILLOSCAR

|

3k tokens scripts
Prose Writer
by WILLOSCAR

| Write `output/DRAFT.md` (or `output/SNAPSHOT.md`) from an approved outline and evidence packs, using only verified citation keys from `citations/ref.bib`.

5k tokens scripts
Research Pipeline Runner
by WILLOSCAR

Run a research Workflow end to end when the user requests a survey, brief, review, tutorial, or idea exploration; route an unbound goal, execute one eligible Unit at a time, and stop at checkpoints or diagnosed failures.

1k tokens
Redundancy Pruner
by WILLOSCAR

| Remove repeated boilerplate across sections (methodology disclaimers, generic transitions, repeated summaries) while preserving citations and meaning.

1k tokens
Rubric Writer
by WILLOSCAR

| Use when `paper-review` has claims plus evidence gaps and needs the final referee-style report.

985 tokens scripts
Schema Normalizer
by WILLOSCAR

| Normalize cross-skill JSONL interfaces (ids + titles + citation key formats) so downstream skills do not rely on best-effort joins.

5k tokens scripts
Screening Manager
by WILLOSCAR

| Use when an approved `evidence-review` protocol needs to be applied to a candidate pool.

1k tokens scripts
Section Bindings
by WILLOSCAR

| Bind papers to chapter-level sections first, writing `outline/section_bindings.jsonl` and `outline/section_binding_report.md`.

2k tokens scripts
Section Briefs
by WILLOSCAR

| Build chapter-level briefs (`outline/section_briefs.jsonl`) from chapter skeleton plus section bindings before stable H3 decomposition.

3k tokens scripts
Section Logic Polisher
by WILLOSCAR

|

4k tokens scripts
Section Mapper
by WILLOSCAR

| Map papers from the core set to each outline subsection and write `outline/mapping.tsv` with coverage tracking.

10k tokens scripts
Snapshot Writer
by WILLOSCAR

| Use when a `research-brief` workspace has a small paper set plus outline and needs a compact reader-facing briefing instead of a full survey.

1k tokens scripts
Section Merger
by WILLOSCAR

| Deterministically merge the final fingerprinted section snapshot into `output/DRAFT.md`, preserving outline order and inserting transitions only when explicitly enabled.

5k tokens scripts
Source Ingest
by WILLOSCAR

| Fetch and normalize supported source-tutorial inputs into local, traceable text artifacts.

7k tokens scripts
Source Tutorial Spec
by WILLOSCAR

| Use when a `source-tutorial` workspace has ingested sources and needs a grounded tutorial contract before structure planning.

728 tokens scripts
Style Harmonizer
by WILLOSCAR

| De-slot and harmonize paper voice across `sections/*.md` without changing meaning or citation keys.

3k tokens scripts

Claude Skills — questions

Answers built from the skills we actually parsed.

What is a Claude Skill?
A folder with a SKILL.md file: instructions that teach an agent to do one thing well, optionally with scripts and reference files alongside. The format is open and called Agent Skills — Claude Code, Codex and other agents read the same files. It is not a program you run; it is knowledge the agent loads when the task calls for it.
How is a skill different from an MCP server?
A server gives the agent new abilities — it connects to something and exposes tools. A skill gives the agent knowledge: how to use what it already has. They combine, and often literally: 11 350 of the skills here declare which MCP servers they need to work.
Why are there fewer skills here than in other catalogues?
Because we deduplicate by content. Of 79 566 files found on GitHub, 61 913 are unique — the rest is the same skill copied into someone else's repository, word for word. Catalogues that count files rather than skills show every copy as a separate entry.
What does the token count mean?
A skill is loaded into the model's context when it is used, so its size is a running cost on every request that touches it. We measure the whole folder, not just SKILL.md: one official skill is 377 tokens, another drags 83 files of fonts behind it.
How do I install a skill?
Copy the skill folder into ~/.claude/skills for personal use, or into .claude/skills inside a project. The agent picks it up by the name in the SKILL.md header — which is worth checking: 7 886 skills here share a name with another skill, and two of them cannot sit side by side.