evidence-table

evidence-table is a skill for Claude Code from oscardvs/zoteus. It costs 74 tokens per session (942 once invoked), scanned A, original, MIT.

A research assistant for comparing papers stored in Zotero, a reference manager for academic sources. It retrieves passages from the papers' PDFs to build cited literature reviews, evidence tables, and citation audits.

In plain words
What is it for?
Use it to compare studies, answer a research question across several papers, create an evidence table, write a literature review, or audit citations in a draft.
Why use it?
It avoids treating search snippets as evidence and ties quotations and page numbers to retrieved PDF text. This makes source comparisons and citation checks easier to verify.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the zoteus plugin — 4 skills, 1 MCP server shipped together

Good fit Use it to compare studies, answer a research question across several papers, create an evidence table, write a literature review, or audit citations in a draft.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/oscardvs/zoteus/evidence-table
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 oscardvs/zoteus --skill evidence-table
Clone the repo
git clone --depth 1 https://github.com/oscardvs/zoteus

Made for: Claude Code.

Or install zoteus, the plugin that ships this one along with the rest of its 4 skills, 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.

agentmods badge for evidence-table

README.md
[![agentmods](https://agentmods.dev/badge/skills/oscardvs/zoteus/evidence-table/github.svg)](https://agentmods.dev/skills/oscardvs/zoteus/evidence-table)
Your own site
<a href="https://agentmods.dev/skills/oscardvs/zoteus/evidence-table"><img src="https://agentmods.dev/badge/skills/oscardvs/zoteus/evidence-table/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 evidence-table

Your own site · 80×15
<a href="https://agentmods.dev/skills/oscardvs/zoteus/evidence-table"><img src="https://agentmods.dev/badge/skills/oscardvs/zoteus/evidence-table.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 74 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 942 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 $0.00074 $0.00942
Opus 5.5 $0.00030 $0.00377
Sonnet 5.5 $0.00015 $0.00188
Haiku 4.5 $0.00007 $0.00094

Measured 19d ago against content hash 7f2c5dcb9bd4, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

evidence-table 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 19d 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/zoteus/skills/evidence-table/SKILL.md · 36 lines

How it starts

The opening of the file, as written. The whole thing — 36 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Compare sources, review a topic, or audit citations from the Zotero library

These steps use the Zoteus tools, named zotero_*. The rule that holds throughout: every quotation and page comes from a zotero_get_fulltext call made in this conversation. A table built from search snippets looks the same as a real one and cannot be cited.

Evidence table

  1. Choose the studies. Default to at most 5 unless the user asks for more; each costs one full-text call.
    • Given item keys: call zotero_get_item on each for the title, creators and date, and search for nothing else.
    • Given a collection: resolve its name to a key with zotero_list_collections, then call zotero_search_items with collectionKey and top:true so child notes and attachments do not become rows. zotero_semantic_search cannot be scoped to a collection.
    • Otherwise: zotero_semantic_search with q set to the question, falling back to zotero_search_items with top:true when meaning search is unavailable.
  2. Retrieve one passage per study. Call zotero_get_fulltext with the item key and query set to the question, one item at a time. Take the quotation verbatim from passages[0].text. Use page when it is present and pageApprox otherwise, and keep that distinction in the table. When neither is present, leave the locator empty and say so.
  3. Classify coverage from what the tools returned. Use passage when a passage came back, abstract-only when only zotero_get_item returned an abstractNote, and unavailable when neither did.
  4. Judge support. The finding and the support rating are your judgement, so word them as judgement. Rate support as supported, contradicted, uncertain or unverified. A row with no retrieved passage is unverified, never blank and never supported.
  5. Render with the tool. Pass the question and one row per study to zotero_evidence_table with format set to "markdown" or "csv". Do not type the table out yourself: the tool counts the coverage summary from the rows and names any row that contradicts its own evidence. Repeat its warnings as given. Fix the row or leave the gap visible, and never edit a quotation to silence a warning. Pass save_path only if the user asked for a file.
  6. Add the references for the same item keys with zotero_bibliography.
  7. Ask before saving anything into the library.

Read the full file on GitHub · 36 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. 19d ago First seen · 36 lines · 74 tokens per session scan A 7f2c5dcb9bd4

Subscribe to this mod's changes

evidence-table is a skill published in the GitHub repository oscardvs/zoteus (58 stars, last pushed 10d ago), licensed MIT. It adds 74 tokens to every session and 942 once invoked, about $0.0003 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 2026-09-28.

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