Topic · Research & Science

Best fact-checking and source verification skills for Claude Code, Codex and other agents.

Skills that verify claims against sources and flag unsupported statements.
skills
174
official
6

Fact-checking and source verification skills, ranked

Ranked by score. Sort bymost stars,trending,newest,recently updated

Fact-checking and source verification skills, ranked
#SkillRepositoryStarsUsed inTokensAuto-checkLicenceUpdated
1

Searches the web through the Tavily API with LLM-friendly output: clean structured results, optional AI-written answers, domain filters, news mode, images and raw content.

allenpeng0705/EnvoyMesh3.1k4 repos~2.5kAutomated safety check: NotesNo licence6 days ago
2

Verifies the technical accuracy of JavaScript concept pages by checking code examples, MDN and ECMAScript claims and external links through a five-phase method.

leonardomso/33-js-concepts67k1 repo~5kAutomated safety check: PassMIT26 days ago
3

Runs web-grounded searches through Perplexity's Sonar models over OpenRouter for current events, recent literature and cited facts beyond the model's training cutoff.

davila7/claude-code-templates32k12 repos~3.5kAutomated safety check: NotesMITtoday
4

Reference guidance for checking every citation in academic writing against canonical sources such as DOI, arXiv, CrossRef and Semantic Scholar, to catch fake or wrong references.

Galaxy-Dawn/claude-scholar5.7k3 repos~1.9kAutomated safety check: PassMIT14 days ago
5

三层审查模型,逐段逐句验证文章真伪、证据链与逻辑结构。Use when the user asks to fact-check, verify, audit, or evaluate the credibility of an article, essay, report, opinion piece, social-media post, or any written claim —…

digoal/blog8.6k—~939Automated safety check: PassGPL-2.09 days ago
6

Runs a 13-agent pipeline for rigorous academic research, from forming the question through systematic search, synthesis, bias checks and an APA 7.0 report.

Imbad0202/academic-research-skills51k—~13kAutomated safety check: PassUnknown4 days ago
7

A skill your agent uses when the user wants to fact-check an article or verify factual claims in a document.

MigoXLab/dingo757—~741Automated safety check: NotesApache-2.09 days ago
8

Use only when the user explicitly invokes $audit-onboarding-proposal.

hoangnb24/repository-harness1.2k—~4kAutomated safety check: PassMIT3 days ago
9

Researches an unfamiliar topic and delivers a verified resource guide and a staged, timed learning roadmap as matching Markdown and HTML files.

Liuziyu77/AnythingAtlas195—~3.6kAutomated safety check: PassApache-2.01 mo ago
10

A skill your agent uses when the user wants to fact-check an article or verify factual claims in a document.

MigoXLab/dingo757—~833Automated safety check: PassApache-2.09 days ago
11

A skill your agent uses to verify CLAIM-LEVEL grounding of a documentation page (or set of pages) against the source code.

microsoft/apm4k—~1.9kAutomated safety check: PassMITyesterday
12

Fetches the transcript of a YouTube video through TranscriptAPI.com so the agent can summarize, quote, translate or fact-check what was said.

ZeroPointRepo/youtube-skills1k1 repo~1.1kAutomated safety check: PassMITtoday
13

Review and validate claims using counter-hypothesis testing.

bradygaster/squad3.3k—~503Automated safety check: PassMITyesterday
14

Verifies that every reference in a manuscript is real, correctly identified and actually supports its claim, and produces a citation registry for typesetting.

Light0305/Light-skills640—~3.4kAutomated safety check: PassMIT3 mo ago
15

Create complete Xiaohongshu image-and-text posts from a topic, article, document, or rough idea, including research, fact checking, post copy, pagination, storyboards, a 3:4 cover, 9:16 content…

NimaChu/xhs-imagen120—~2.3kAutomated safety check: PassMIT2 mo ago
16

Scrape AI papers published by 28 big tech companies and AI labs in a given date window, with institutional attribution (lead vs.

tigerless-labs/paper-radar217—~2.4kAutomated safety check: PassUnknown1 mo ago
17

Argument shapes for the 5 built-in workflow patterns — deep-research, adversarial-review, code-review, multi-perspective, codebase-audit — runnable via the workflow tool's name input, without…

QuintinShaw/pi-dynamic-workflows554—~827Automated safety check: PassMITyesterday
18

Gives your agent a real-time search service for web queries, domain-specific lookups, parallel batch searches and full-page URL extraction.

jxxghp/MoviePilot12k1 repo~2.7kAutomated safety check: NotesGPL-3.0today
19

Attaches a numbered, URL-backed citation to every outside fact in an answer or document, rejecting quotes that aren't real.

NousResearch/hermes-agent252k—~3.1kAutomated safety check: PassMITtoday
20

Apply Buddhist epistemic and decision-making principles as practical work disciplines to improve reasoning quality, anti-hallucination, debugging discipline, and steadiness under pressure.

nai0om/buddhist-method294—~2.4kAutomated safety check: PassMIT5 mo ago
21

Plans and drafts an eight-part, roughly 120k-word investigative series on one company, built around a strict fact-check pass rather than fast drafting.

HKUDS/Vibe-Trading35k—~2.4kAutomated safety check: PassMITyesterday
22

Runs cross-source web research to verify whether an online claim is true, distinguishing confirmed facts from rumor, marketing claims or stale information.

h4444433333/net-deep-research123—~3.3kAutomated safety check: PassMIT1 mo ago
23

A skill your agent uses when the user asks for discovery-scale research that informs a decision: brainstorming a project or feature, choosing a technology, or requests like "research X", "what's the…

DanMcInerney/architect-loop626—~2.3kAutomated safety check: PassMIT24 days ago
24

Adversarial fact-checking of the user's articles and essays (typically blog posts from akitaonrails-hugo, any markdown/text file), verifying every claim against online primary sources via cheap…

akitaonrails/my-skills211—~2.7kAutomated safety check: PassNo licence14 days ago
25

Researches what people are saying about a topic over a recent window across X, Reddit, YouTube and the public web, reporting each source's status with links.

imraywang/rayskills160—~2.1kAutomated safety check: PassUnknown14 days ago
26

Audit a game environment's README.md and AGENTS.md against its engine implementation.

Kaggle/kaggle-environments454—~2.7kAutomated safety check: PassApache-2.0today
27

Count how many independent origins are behind news coverage of a claim, instead of counting URLs.

SerhiiKorniienko/bullshit-detector153—~1.5kAutomated safety check: PassMIT8 days ago
28

Use Agent Search MCP for free-first English and Chinese web search with compact evidence and minimal tool calls.

lennney/agent-search-mcp110—~1.9kAutomated safety check: PassApache-2.016 days ago
29

A research rule set for pulling company financials from prioritized sources by market and cross-checking every key figure against two independent sources.

xbtlin/ai-berkshire17k—~1.4kAutomated safety check: PassMITyesterday
30
30.WhatsnewOfficial

Step-argument skill that formalizes writing an Aspire "What's new in N.N" release-notes page (src/frontend/src/content/docs/whats-new/aspire-N-N.mdx) as a repeatable lifecycle.

microsoft/aspire.dev196—~1.9kAutomated safety check: PassMITtoday
31

Unified web search, page fetching and evidence checking across hundreds of sources, with result verification, a research-dossier mode and vertical search engines.

taxueseek/argo184—~1.2kAutomated safety check: PassMITyesterday
32

Runs a branch-parallel research pipeline with declared sufficiency per subquestion, deterministic stop and citation checks, and a separate model for verification.

AnkitClassicVision/Claude-Code-Deep-Research147—~588Automated safety check: PassMIT3 mo ago
33

Cross-checks each academic reference against several sources field by field, flags conflicts such as year, DOI, author order and page errors, and outputs a structured report.

Yuan1z0825/nature-skills46k2 repos~1.4kAutomated safety check: PassApache-2.0today
34

Builds courses on current or externally checkable topics by researching live sources first, keeping a claim-to-source ledger and grounding every page in what was fetched.

THU-MAIC/OpenMAIC40k—~2kAutomated safety check: PassMITtoday
35

A skill your agent uses whenever invoking the GitHits CLI for public OSS source, documentation, or example evidence, including code search/grep, file navigation, source verification, docs lookup, or…

githits-com/githits-cli114—~2.6kAutomated safety check: PassApache-2.0yesterday
36

Fetch and normalize any content source into clean text with metadata — YouTube video transcripts, TikTok captions, web articles, PDFs, tweets/X posts, local files.

SerhiiKorniienko/bullshit-detector153—~976Automated safety check: PassMIT8 days ago
37

Bright Data MCP handles ALL web data operations. An agent skill from brightdata/skills.

brightdata/skills2641 repo~3.7kAutomated safety check: PassMITyesterday
38

A skill your agent uses for web searches and current information lookups, finding sources, fact-checking, researching questions, comparing sources, or summarising web pages.

zhongkaifu/TensorSharp553—~2.3kAutomated safety check: WarnBSD-3-Clausetoday
39

Plan and execute multi-step research, surveys, feasibility studies, and evidence-heavy analyses with adaptive planning, source verification, critic review, and cross-task learning.

microsoft/ArgusAgent135—~2.7kAutomated safety check: PassMIT5 days ago
40

Breaks AI-generated text into checkable claims, verifies them against independent sources and labels each one, with an optional exercise for learners.

iflytek/skillhub5.2k—~1.2kAutomated safety check: PassCC-BY-SA-4.06 days ago
41

A skill your agent uses when the user asks you to research, compare, fact-check or find current information, and the answer should come with sources.

katipally/openlive333—~827Automated safety check: PassApache-2.02 days ago
42

Use Entroly for content-blind agent-history audits, explicit baseline/optimized trials, recoverable command or browser evidence, response contracts, and token-efficiency claim verification.

juyterman1000/entroly472—~528Automated safety check: PassApache-2.0today
43

Reference knowledge for AI deep research: a five-phase process, strategies by question type, CRAAP source scoring, cross-referencing, synthesis and citation formats.

RightNow-AI/openfang18k—~2.6kAutomated safety check: PassApache-2.03 mo ago
44

A skill your agent uses when drafting, rewriting, or repurposing short-form X content, including single posts, quote posts, replies, threads, launches, and personal stories, with source fidelity and…

asimons81/hermes-field-kit126—~2.6kAutomated safety check: PassApache-2.028 days ago
45

Assess and promote corpus slices toward citation readiness. An agent skill from scholay/skills.

scholay/skills141—~1.1kAutomated safety check: PassMIT3 mo ago
46

Verify claims in pitch decks and founder statements using multiple independent sources.

Abilityai/trinity626—~635Automated safety check: PassApache-2.0today
47

Runs multi-step research with a loop of search, compress, reflect and synthesize, scaling effort from a quick sourced answer to an exhaustive cited report.

madebyaris/advance-minimax-m3-cursor-rules126—~2.9kAutomated safety check: PassMIT3 mo ago
48

Turn a BS report (or any analysis result) into ready-to-paste posts for X/Twitter, LinkedIn, Facebook, Reddit, Hacker News, or a newsletter issue — plus a branded image carousel (PNGs + PDF) for…

SerhiiKorniienko/bullshit-detector153—~857Automated safety check: PassMIT8 days ago

Questions, answered from the data.

What is the best fact-checking and source verification skill?

Tavily Web Search from allenpeng0705/EnvoyMesh ranks first of the 174 fact-checking and source verification skills listed here, with the highest score: its repository has 3.1k GitHub stars, 4 other GitHub owners carry a copy, its SKILL.md loads about 2.5k tokens and it has informational notes only in the automated safety check. Next come JavaScript Concept Fact Checker and Perplexity Web Search.

Which fact-checking and source verification skills are official?

6 of the 174 fact-checking and source verification skills are official, published by the vendor's own GitHub organization: Docs Grounding Verifier, Whatsnew, Research Workflow, .NET API Diff Validation, Triage Issue Reports and 1 more.

How are these skills ranked?

By Skill Navigator score, which combines the GitHub stars of the skill's repository (shared across that repo's skills and discounted for large collections), how many other GitHub owners carry a copy of the skill, and automated SKILL.md quality checks, minus penalties for safety-check warnings and for each further skill from the same repository. Skills that fail the safety check are not listed.