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Agent skill

Verify Citations

by sickn33 in sickn33/agentic-awesome-skills

Verify citations and references in a document, report, or article against real sources.

Apache-2.0Auto-check passedResearch & Science

Install Verify Citations

skills CLI
$ npx skills add sickn33/agentic-awesome-skills --skill verify-citations -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install sickn33/agentic-awesome-skills verify-citations --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/verify-citations .claude/skills/verify-citations && rm -rf skills-src

Use ~/.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/

Facts

Skill name
verify-citations
GitHub stars
47k
Used in
1 other repo
Token cost
~1k tokens
SKILL.md length
399 words
Files
1
Skills in repo
1,354
Repo updated
First seen
Licence
Apache-2.0

At a glance

Verify citations and references in a document, report, or article against real sources.

  • Works in 5 steps: Get the document. Ask the user for a URL… → Run verification. POST the document to… → Interpret the response. The result… → …
  • The user asks to fact-check
  • SKILL.md covers When to use, Instructions, Output format and Limitations and Safety, plus 1 more section
  • Calls curl; reaches stipple.sh; needs STIPPLE_API_KEY

What it does

Verify Citations is an agent skill from sickn33/agentic-awesome-skills. Verify citations and references in a document, report, or article against real sources. Use when the user asks to fact-check, verify references, check citations, or validate evidence in research reports, tender responses, whitepapers, or academic writing.

Its SKILL.md is about 1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Research & Science, covering Citation management, Report writing and Proposals and quotes. The repository describes itself as: AAS Core is the local, agent-first control plane for complete catalog discovery, agent-owned selection, stack validation, and planning, backed by 2,400+ agentic skills. Includes… The licence is Apache-2.0.

When your agent uses it

  • The user asks to fact-check
  • Verify references
  • Check citations
  • Validate evidence in research reports

Example prompts

  • “/verify-citations”

Requirements

  • A credential in STIPPLE_API_KEY

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. Get the document. Ask the user for a URL to the report, or a local file path (PDF, DOCX, Markdown). If the user pastes text directly, skip…
  2. Run verification. POST the document to Stipple's citation verification endpoint
  3. Interpret the response. The result includes
  4. Report honestly. Present results as verification coverage, not a truth verdict
  5. Offer remediation. For failed citations, suggest: fixing the decimal shift, finding the correct source, or removing the unsupported claim.

What it can do on your machine

Read from SKILL.md and the folder at commit ec02547. 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

    Shell commands in SKILL.md call:

    • curl

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Hosts in commands or code, which the agent is likely to contact:

    • stipple.sh

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names these keys or tokens, usually read from environment variables:

    • STIPPLE_API_KEY

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Verify Citations loads about 1k tokens when it runs. Until then it costs about 68 tokens; SKILL.md has 399 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~68
When it runs · the whole SKILL.md, loaded when a task matches
~1k

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 sickn33/agentic-awesome-skills at commit ec02547, republished under its Apache-2.0 licence (© sickn33). 399 words, ~1,049 tokens.

Download SKILL.mdSave it as .claude/skills/verify-citations/SKILL.md (or your agent's skills folder).
name
verify-citations
description
Verify citations and references in a document, report, or article against real sources. Use when the user asks to fact-check, verify references, check citations, or validate evidence in research reports, tender responses, whitepapers, or academic writing.
category
document-verification
risk
critical
source
community
source_repo
Sketchjar/stipple-agent-skills
source_type
community
date_added
2026-08-31
author
Sketchjar
tags
document-verification, fact-checking, stipple, authenticity
tools
claude, cursor, gemini, codex
license
Apache-2.0

Citation Verification

Verify that citations in a document actually resolve and support the claims they're attached to. Uses the Stipple API (free anonymous tier, no signup) for citation resolution, arithmetic recomputation, and unsupported-claim detection.

When to use

  • Before submitting or publishing a research report, tender response, or whitepaper
  • Reviewing an LLM-generated document (LLM citations are plausibly-formatted and frequently wrong)
  • Due diligence on third-party reports
  • Academic reference checking

Instructions

  1. Get the document. Ask the user for a URL to the report, or a local file path (PDF, DOCX, Markdown). If the user pastes text directly, skip to step 3 with text input.

  2. Run verification. POST the document to Stipple's citation verification endpoint:

    bash
    curl -X POST https://www.stipple.sh/v1/verify-references \
  -F "file=@report.pdf" \
  -H "Authorization: Bearer $STIPPLE_API_KEY"

    The anonymous free tier works without the Authorization header. Deep mode (?deep=true) costs more credits but cross-checks citations against live web sources.

  3. Interpret the response. The result includes:

    • verification_coverage — percentage of claims verified (e.g. "78%")
    • citations[] — per-citation status: resolved and matching, resolved but mismatched, or unresolvable, with the issue explained
    • arithmetic[] — recomputed figures vs stated figures (flags decimal shifts, wrong sums)
    • unsupported_claims[] — claims with no citation at all

  4. Report honestly. Present results as verification coverage, not a truth verdict:

    • "21/27 citations resolve and match"
    • "[x] FY24+FY25 revenue stated $4.2m, actual $3.7m"
    • "[!] 'industry-leading accuracy' — no source in document"
    • Unverified ≠ false. The goal is telling the user which claims are backed and which aren't.

  5. Offer remediation. For failed citations, suggest: fixing the decimal shift, finding the correct source, or removing the unsupported claim.

Show full SKILL.md (152 more words)Show less

Output format

Verification coverage: 78%

Citations: 21/27 resolve and match
  [+] "ABS unemployment 4.1% April 2026" — matches abs.gov.au
  [-] "AI adoption grew 340% in 2025" — source states 34%, decimal shifted

Arithmetic: 12/13 recompute correctly
  [x] FY24 + FY25 revenue — stated $4.2m, actual $3.7m

Unsupported claims: 2
  [!] "industry-leading accuracy" — no source in document

Limitations and Safety

  • Uploading a report or manuscript sends its contents to a hosted third party; deep mode also retrieves external sources. Obtain approval before transmission, remove confidential or personal material, and verify current retention and deletion terms.
  • Resolution and textual support do not establish that a source is authoritative or that a claim is true. Inspect consequential citations in the primary source and preserve page, edition, date, and access context.
  • Treat unresolved or unsupported claims as review items, not proof of fabrication, and keep a human reviewer responsible for publication or academic decisions.

Notes

  • Works on PDF, DOCX, MD, TXT. For pasted text, POST JSON: {"text": "..."}
  • Deep verification (deep=true) is slower and costs more credits but resolves citations against live sources
  • Pairs well with verify-document (is the source doc itself authentic?) run first
  • Anonymous free tier: shared weekly allowance. Get a free key at https://www.stipple.sh for your own metering

© sickn33, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/verify-citations of sickn33/agentic-awesome-skills.

Open the folder on GitHubat commit ec02547

Used in 1 other repository

We found 5 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in sickn33/agentic-awesome-skills, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Verify Citations 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.

Verify Citations compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Verify Citations this skillsickn33/agentic-awesome-skills47k1 repos~1kAutomated safety check: PassApache-2.0
Live Researchbrightdata/skills264—~1.8kAutomated safety check: PassMIT
Deep Research MethodologyRightNow-AI/openfang18k—~2.6kAutomated safety check: PassApache-2.0
ResearchEliasOulkadi/shokunin114—~3.4kAutomated safety check: PassMIT
Horizontal-Vertical Deep ResearchKKKKhazix/khazix-skills21k—~2.1kAutomated safety check: PassMIT
Oleafly Verify ClaimsOleafly/Oleafly206—~3.1kAutomated safety check: PassMIT

Similar skills

  • Live Research

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    Produce a deep, multi-source, cited research brief on a topic from live web data using Bright Data's Discover API (intent-ranked web search + parsed page content).

    264 GitHub stars~1.8k tokensUpdated yesterday
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  • Deep Research Methodology

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

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    21k GitHub stars~2.1k tokensUpdated 7 days ago
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  • Oleafly Verify Claims

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    206 GitHub stars~3.1k tokensUpdated today
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Categories

Questions about Verify Citations

What does Verify Citations do?

Verify citations and references in a document, report, or article against real sources. Verify Citations is an agent skill from sickn33/agentic-awesome-skills. Verify citations and references in a document, report, or article against real sources.

When should I use Verify Citations?

Verify Citations fits situations like: the user asks to fact-check; verify references; check citations; validate evidence in research reports.

How do I install Verify Citations in Claude Code?

Run `npx skills add sickn33/agentic-awesome-skills --skill verify-citations -a claude-code`. Or copy the skill folder (skills/verify-citations in sickn33/agentic-awesome-skills) into .claude/skills/verify-citations in your project. Claude Code loads it when a task matches its description.

How do I install Verify Citations in Codex?

Run `npx skills add sickn33/agentic-awesome-skills --skill verify-citations -a codex`. Or copy the skill folder (skills/verify-citations in sickn33/agentic-awesome-skills) into .agents/skills/verify-citations in your project. Codex loads it when a task matches its description.

Can I use Verify Citations 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 sickn33/agentic-awesome-skills --skill verify-citations -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/verify-citations, .gemini/skills/verify-citations, .github/skills/verify-citations and .opencode/skills/verify-citations in your project.

What does Verify Citations need to run?

Going by SKILL.md and its folder, Verify Citations needs the command-line tools its instructions call (curl) and credentials named STIPPLE_API_KEY. Our summary lists: A credential in STIPPLE_API_KEY.

Does Verify Citations access the network?

SKILL.md names 1 domain. In commands or code: stipple.sh; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.

Is Verify Citations 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 Verify Citations use?

Verify Citations is published under the Apache-2.0 licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Verify Citations use?

About 1k tokens (SKILL.md is roughly 4.2k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Verify Citations?

Skills that share tags, products or a category with Verify Citations: Live Research (brightdata/skills, 264 stars), Deep Research Methodology (RightNow-AI/openfang, 18k stars), Research (EliasOulkadi/shokunin, 114 stars) and Horizontal-Vertical Deep Research (KKKKhazix/khazix-skills, 21k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Verify Citations?

sickn33 (a GitHub user) maintains it in sickn33/agentic-awesome-skills, which has 47,343 GitHub stars. The repository holds 1,354 skills in this directory. The repository was last updated on October 7, 2026.

Source: sickn33/agentic-awesome-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.