verify-claim

verify-claim is a skill for Claude Code, Codex from MattArtzAnthro/gephi-ai. It costs 54 tokens per session (570 once invoked), scanned A, original, Apache-2.0.

A skill for independently checking one claim about a Gephi graph, which is a visual network of connected items. It measures the graph and reports whether the claim is confirmed, refuted, or impossible to determine.

In plain words
What is it for?
Use it to check claims about which node is more central, how groups connect, which items act as bridges, or how robust the network is.
Why use it?
It replaces visual guesswork with measurements matched to the claim, while keeping what-if changes separate from the real graph.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to check claims about which node is more central, how groups connect, which items act as bridges, or how robust the network is.

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Install with agentmods
npx agentmods add skills/mattartzanthro/gephi-ai/verify-claim
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add MattArtzAnthro/gephi-ai --skill verify-claim
Clone the repo
git clone --depth 1 https://github.com/MattArtzAnthro/gephi-ai

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 verify-claim

README.md
[![agentmods](https://agentmods.dev/badge/skills/mattartzanthro/gephi-ai/verify-claim/github.svg)](https://agentmods.dev/skills/mattartzanthro/gephi-ai/verify-claim)
Your own site
<a href="https://agentmods.dev/skills/mattartzanthro/gephi-ai/verify-claim"><img src="https://agentmods.dev/badge/skills/mattartzanthro/gephi-ai/verify-claim/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 verify-claim

Your own site · 80×15
<a href="https://agentmods.dev/skills/mattartzanthro/gephi-ai/verify-claim"><img src="https://agentmods.dev/badge/skills/mattartzanthro/gephi-ai/verify-claim.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 54 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 570 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 original No closer match found 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 $0.00054 $0.00570
Opus 5 $0.00027 $0.00285
Sonnet 5 $0.00011 $0.00114
Haiku 4.5 $0.00005 $0.00057

Measured 10d ago against content hash a6c263db038e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

verify-claim 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 10d 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.

plugins/gephi-network-analysis/skills/verify-claim/SKILL.md · 53 lines

How it starts

The opening of the file, as written. The whole thing — 53 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Verify a Structural Claim

Verify one claim against the live graph. Independence is the point: do not try to make the claim true; determine whether the graph supports it.

Read ../gephi/references/claim-verification.md before choosing the method. If the user did not provide a claim, ask for it in one sentence.

Workflow

  1. Call gephi_health_check. If it fails, tell the user to start Gephi and stop.
  2. Preserve the claim verbatim and classify it as comparison, connectivity, centrality, grouping, or robustness.
  3. Match the measurement to the claim's words:
    • comparison, such as "X is more central than Y": compute the named metric, then call gephi_compare_nodes;
    • connectivity: use gephi_visual_qa with the claimed grouping or count cross-group edges with a read-only filter;
    • importance: compute the metric the word implies—bridge means betweenness, reach may mean degree or PageRank—and rank the relevant nodes;
    • robustness: call gephi_whatif, which edits and deletes a scratch workspace while leaving the real graph unchanged.
  4. If the claim is vague, measure the two or three plausible meanings and report them separately. Do not silently choose the result most favorable to the claim.
  5. Choose exactly one verdict: confirmed, refuted, or can't-tell.

Guardrails

  • Give the actual number, not just a verdict.
  • Never turn can't-tell into refuted.
  • Flag small or skewed samples even when the measured result is confirmed.
  • Computing statistic columns is allowed; recoloring, relayout, destructive filtering, and graph edits are not.
  • Never assert scale-free or power-law structure from a heavy tail.

Verified Record

Call gephi_claim_record with the verbatim claim, classification, verdict, metric or node column, every supporting node ID, the values read for those nodes, other numeric evidence, the caveat, and an export path when requested. The tool re-reads the live graph and checks the receipts.

If the result says verified: false, remeasure and call it again. Do not present unverified numbers as checked.

Read the full file on GitHub · 53 lines

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. 10d ago First seen · 53 lines · 54 tokens per session scan A a6c263db038e

Subscribe to this mod's changes

verify-claim is a skill published in the GitHub repository MattArtzAnthro/gephi-ai (22 stars, last pushed 8d ago), licensed Apache-2.0. It adds 54 tokens to every session and 570 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.