What is empirica-auditor?

An independent checker for an empirica research run. It rereads the sources cited for approved claims and records whether each source actually supports its claim.

Use it to audit research citations against the ADR-20 review rules and create a pass-or-fail verdict artifact.

It helps catch unsupported conclusions before a research run is reported as complete.

empirica-auditor — Agent for Claude Code by obzenner/siffran

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.

Clone the repo

git clone --depth 1 https://github.com/obzenner/siffran

Made for: Claude Code.

Or install empirica, the plugin that ships this one along with the rest of its 1 skill, 1 command, 1 agent, 9 hooks, 1 MCP server.

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.

README.md

[![agentmods](https://agentmods.dev/badge/agents/obzenner/siffran/empirica-auditor/github.svg)](https://agentmods.dev/agents/obzenner/siffran/empirica-auditor)

Your own site

<a href="https://agentmods.dev/agents/obzenner/siffran/empirica-auditor"><img src="https://agentmods.dev/badge/agents/obzenner/siffran/empirica-auditor/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.

Your own site · 80×15

<a href="https://agentmods.dev/agents/obzenner/siffran/empirica-auditor"><img src="https://agentmods.dev/badge/agents/obzenner/siffran/empirica-auditor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 22 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.

When invoked 945 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 unknown 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.

Model	Per session	Once invoked
Fable 5.1	$0.00022	$0.00945
Opus 5.5	$0.00009	$0.00378
Sonnet 5.5	$0.00004	$0.00189
Haiku 4.5	$0.00002	$0.00094

Measured 23d ago against content hash 2ea08f0b692c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

empirica-auditor 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 23d 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/empirica/agents/empirica-auditor.md · 68 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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.

23d ago Changed · +17 lines 2ea08f0b692c
1mo ago Changed · +5 lines 65d36f02ea56
1mo ago Changed · -51 lines · -52 tokens per session 83dfd2d9bc4c
1mo ago Changed · -16 lines ae1dd76b21ef
2mo ago Changed · -20 lines 4b91d558b489
2mo ago First seen · 133 lines · 74 tokens per session scan A d186d83f3b7f

Subscribe to this mod's changes

empirica-auditor is an agent published in the GitHub repository obzenner/siffran (7 stars, last pushed 3d ago), with no licence file. It adds 22 tokens to every session and 945 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-08-31.

Research

empirica-auditor next to 6 agents from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
empirica-auditorobzenner/siffran	Agent	7	3d ago	none	A	22	Claude Code
playwright-test-generatormicrosoft/playwright	Agent	100k	yesterday	Apache-2.0	A	151	Claude Code
.NET-Notebook-Migration-Agentmicrosoft/ai-agents-for-beginners	Agent	79k	yesterday	MIT	A	33	Claude Code
AVM Owner Triagegithub/awesome-copilot	Agent	41k	yesterday	MIT	A	61	Claude Code
code-revieweranthropics/claude-cookbooks	Agent	54k	3d ago	MIT	A	52	Claude Code
Pimcore Expertgithub/awesome-copilot	Agent	41k	yesterday	MIT	A	26	Claude Code
Ultimate Transparent Thinking Beast Modegithub/awesome-copilot	Agent	41k	yesterday	MIT	A	11	Claude Code