Citation Verification Guide
Galaxy-Dawn/claude-scholar
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.
Verify factual claims in a text against authoritative sources and rewrite it with footnote citations, hedging the unconfirmed.
Install 04 Fact Check
$ npx skills add ai-driven-dev/framework --skill 04-fact-check -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install ai-driven-dev/framework 04-fact-check --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/ai-driven-dev/framework.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/aidd-refine/skills/04-fact-check .claude/skills/04-fact-check && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "04-fact-check" agent skill from https://github.com/ai-driven-dev/framework/tree/main/plugins/aidd-refine/skills/04-fact-check into .claude/skills/04-fact-check/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "04-fact-check", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/ai-driven-dev/framework/tree/main/plugins/aidd-refine/skills/04-fact-checkType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add ai-driven-dev/framework --skill 04-fact-check -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install ai-driven-dev/framework 04-fact-check --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ai-driven-dev/framework.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugins/aidd-refine/skills/04-fact-check .agents/skills/04-fact-check && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "04-fact-check" agent skill from https://github.com/ai-driven-dev/framework/tree/main/plugins/aidd-refine/skills/04-fact-check into .agents/skills/04-fact-check/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "04-fact-check", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add ai-driven-dev/framework --skill 04-fact-check -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install ai-driven-dev/framework 04-fact-check --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ai-driven-dev/framework.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugins/aidd-refine/skills/04-fact-check .cursor/skills/04-fact-check && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "04-fact-check" agent skill from https://github.com/ai-driven-dev/framework/tree/main/plugins/aidd-refine/skills/04-fact-check into .cursor/skills/04-fact-check/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "04-fact-check", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/ai-driven-dev/framework.git --path plugins/aidd-refine/skills/04-fact-check--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add ai-driven-dev/framework --skill 04-fact-check -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install ai-driven-dev/framework 04-fact-check --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ai-driven-dev/framework.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugins/aidd-refine/skills/04-fact-check .gemini/skills/04-fact-check && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "04-fact-check" agent skill from https://github.com/ai-driven-dev/framework/tree/main/plugins/aidd-refine/skills/04-fact-check into .gemini/skills/04-fact-check/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "04-fact-check", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install ai-driven-dev/framework 04-fact-checkInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add ai-driven-dev/framework --skill 04-fact-check -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/ai-driven-dev/framework.git skills-src && mkdir -p .github/skills && cp -r skills-src/plugins/aidd-refine/skills/04-fact-check .github/skills/04-fact-check && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "04-fact-check" agent skill from https://github.com/ai-driven-dev/framework/tree/main/plugins/aidd-refine/skills/04-fact-check into .github/skills/04-fact-check/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "04-fact-check", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add ai-driven-dev/framework --skill 04-fact-check -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install ai-driven-dev/framework 04-fact-check --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/ai-driven-dev/framework.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugins/aidd-refine/skills/04-fact-check .opencode/skills/04-fact-check && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "04-fact-check" agent skill from https://github.com/ai-driven-dev/framework/tree/main/plugins/aidd-refine/skills/04-fact-check into .opencode/skills/04-fact-check/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "04-fact-check", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
04-fact-check- GitHub stars
- 513
- Token cost
- ~839 tokens
- SKILL.md length
- 381 words
- Files
- 8 (incl. references, assets)
- Skills in repo
- 46
- Repo updated
- First seen
- Licence
- MIT
At a glance
Verify factual claims in a text against authoritative sources and rewrite it with footnote citations, hedging the unconfirmed.
- Cite sources on request
- SKILL.md covers Actions, Transversal rules, References and Assets
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Tasks that involve Fact-checking and source verification
What it does
04 Fact Check is an agent skill from ai-driven-dev/framework. Verify factual claims in a text against authoritative sources and rewrite it with footnote citations, hedging the unconfirmed. Use to fact-check, verify a claim, or cite sources on request. Not for judging code or clarifying requirements.
Its SKILL.md is about 840 tokens, which your agent loads only when the skill is triggered. The skill folder holds 10 other files, including reference files and assets (for example `actions/01-identify-claims.md`, `actions/02-verify.md` and `actions/03-report.md`).
It sits in Research & Science, covering Fact-checking and source verification and Citation management. The repository describes itself as: Marketplace Framework AI-Driven Dev : Context Engineering, Plugins, Agents, Skills, Hooks, Templates, SDLC. The licence is MIT.
When your agent uses it
- Cite sources on request
- Tasks that involve Fact-checking and source verification
- Tasks that involve Citation management
Example prompts
- “/04-fact-check”
What it can do on your machine
Read from SKILL.md and the folder at commit 6e30640. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
04 Fact Check loads about 839 tokens when it runs, and up to ~2.2k if it reads all its reference files. Until then it costs about 63 tokens; SKILL.md has 381 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from ai-driven-dev/framework at commit 6e30640, republished under its MIT licence (© ai-driven-dev). 381 words, ~839 tokens.
Download SKILL.mdSave it as
.claude/skills/04-fact-check/SKILL.md (or your agent's skills folder). This skill also uses 7 other files; get the full folder from GitHub.- name
- 04-fact-check
- description
- Verify factual claims in a text against authoritative sources and rewrite it with footnote citations, hedging the unconfirmed. Use to fact-check, verify a claim, or cite sources on request. Not for judging code or clarifying requirements.
- argument-hint
- text
Fact-check
Verifies the factual claims inside a target text and rewrites it grounded in evidence. The skill extracts each verifiable claim, runs a cheapest-first verification cascade, and emits a rewritten answer where every confirmed claim carries a footnote citation and every unconfirmed claim is explicitly hedged. When sources disagree, both are reported rather than one being silently chosen.
Actions
| # | Action | Role | Input |
|---|---|---|---|
| 01 | identify-claims | Extract verifiable factual claims from the text, classify each, drop opinion | target text |
| 02 | verify | Run the verification cascade per claim, produce a verdict and sources | claim list from 01 |
| 03 | report | Rewrite the text with footnote citations, hedge unverified, surface conflicts | verdict list from 02 |
Run 01 → 02 → 03; pass each ## Test before the next.
Before running an action, read its file in actions/, not only the table or assets.
Transversal rules
- Never alter the meaning of a claim while verifying it: verify what was stated, not a charitable reinterpretation.
- The verification cascade is cheapest-first and short-circuits: stop at the first tier that resolves a claim. See
references/verification-cascade.md. - A web lookup is the last resort, never the first. Reach it only when project memory and codebase inspection both fail to resolve a claim.
- Claim categories come from the locked set in
references/claim-categories.md. Opinion, preference, and trivially-known statements are not claims and are skipped. - When two sources disagree, report both with their origin, never silently pick one.
- An unverified claim is never deleted and never asserted as fact: it is kept and marked
(unverified - no source found). - Caching a verified fact is opt-in: propose it with a recommendation, never cache silently. The skill persists nothing; the mechanics live in action 03.
- The final report is reader-facing prose: the corrected text,
## Sources, and## Unverified claims, nothing else. Internal mechanics never appear in the output: no cascade or tier trace (Cascade:,tier 1/2/3,miss,resolved), no category labels, no raw verdict words. State conclusions, not the process. Action 03 holds the exhaustive forbidden list. - The report is rendered in plain prose and is never restyled by an active output mode. The skill's output format is fixed by action 03 alone.
Show full SKILL.md (29 more words)Show less
References
references/claim-categories.md: locked taxonomy of verifiable claim categories with definition and example.references/verification-cascade.md: the three-tier cascade, short-circuit rule, web-cost guardrail.
Assets
assets/report-template.md: rewritten-answer skeleton with the## Sourcesfootnote block.
© ai-driven-dev, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 7 other files (references, assets) in plugins/aidd-refine/skills/04-fact-check of ai-driven-dev/framework.
- SKILL.md
- actions/01-identify-claims.md
- actions/02-verify.md
- actions/03-report.md
- assets/report-template.md
- references/claim-categories.md
- references/report-output-discipline.md
- references/verification-cascade.md
Open the folder on GitHubat commit 6e30640
Compare with similar skills
04 Fact Check next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| 04 Fact Check this skillai-driven-dev/framework | 513 | — | ~839 | Automated safety check: Pass | MIT | |
| Citation Verification GuideGalaxy-Dawn/claude-scholar | 5.7k | 3 repos | ~1.9k | Automated safety check: Pass | MIT | |
| Article Fact Checkerdigoal/blog | 8.6k | — | ~939 | Automated safety check: Pass | GPL-2.0 | |
| Citation VerificationLight0305/Light-skills | 641 | — | ~3.4k | Automated safety check: Pass | MIT | |
| Grounded CitationsNousResearch/hermes-agent | 252k | — | ~3.1k | Automated safety check: Pass | MIT | |
| Reference VerifierYuan1z0825/nature-skills | 46k | 2 repos | ~1.4k | Automated safety check: Pass | Apache-2.0 |
Similar skills
Article Fact Checker
digoal/blog
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 —…
Citation Verification
Light0305/Light-skills
Verifies that every reference in a manuscript is real, correctly identified and actually supports its claim, and produces a citation registry for typesetting.
Grounded Citations
NousResearch/hermes-agent
Attaches a numbered, URL-backed citation to every outside fact in an answer or document, rejecting quotes that aren't real.
Reference Verifier
Yuan1z0825/nature-skills
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.
Research
zhongkaifu/TensorSharp
A skill your agent uses for web searches and current information lookups, finding sources, fact-checking, researching questions, comparing sources, or summarising web pages.
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Related
Categories
Questions about 04 Fact Check
What does 04 Fact Check do?
Verify factual claims in a text against authoritative sources and rewrite it with footnote citations, hedging the unconfirmed. 04 Fact Check is an agent skill from ai-driven-dev/framework. Verify factual claims in a text against authoritative sources and rewrite it with footnote citations, hedging the unconfirmed.
When should I use 04 Fact Check?
04 Fact Check fits situations like: cite sources on request; tasks that involve Fact-checking and source verification; tasks that involve Citation management.
How do I install 04 Fact Check in Claude Code?
Run `npx skills add ai-driven-dev/framework --skill 04-fact-check -a claude-code`. Or copy the skill folder (plugins/aidd-refine/skills/04-fact-check in ai-driven-dev/framework) into .claude/skills/04-fact-check in your project. Claude Code loads it when a task matches its description.
How do I install 04 Fact Check in Codex?
Run `npx skills add ai-driven-dev/framework --skill 04-fact-check -a codex`. Or copy the skill folder (plugins/aidd-refine/skills/04-fact-check in ai-driven-dev/framework) into .agents/skills/04-fact-check in your project. Codex loads it when a task matches its description.
Can I use 04 Fact Check in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add ai-driven-dev/framework --skill 04-fact-check -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/04-fact-check, .gemini/skills/04-fact-check, .github/skills/04-fact-check and .opencode/skills/04-fact-check in your project.
What does 04 Fact Check need to run?
SKILL.md names no scripts, command-line tools or credentials: 04 Fact Check is instructions for the agent only.
Does 04 Fact Check access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is 04 Fact Check safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does 04 Fact Check use?
04 Fact Check is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does 04 Fact Check use?
About 839 tokens (SKILL.md is roughly 3.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1.4k tokens, read only when the agent opens those files.
What are the alternatives to 04 Fact Check?
Skills that share tags, products or a category with 04 Fact Check: Citation Verification Guide (Galaxy-Dawn/claude-scholar, 5.7k stars), Article Fact Checker (digoal/blog, 8.6k stars), Citation Verification (Light0305/Light-skills, 641 stars) and Grounded Citations (NousResearch/hermes-agent, 252k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains 04 Fact Check?
ai-driven-dev (a GitHub organization) maintains it in ai-driven-dev/framework, which has 513 GitHub stars. The repository holds 46 skills in this directory. The repository was last updated on October 8, 2026.
Source: ai-driven-dev/framework on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.