triliumnext-mcp: Skill for Claude Code

.claude/skills/eval-harness/SKILL.md

eval-harness is a skill for Claude Code, Codex from tan-yong-sheng/triliumnext-mcp. It costs 19 tokens per session (1,405 once invoked), scanned A, original, no licence file.

A framework for formally evaluating Claude Code sessions while building software. It applies eval-driven development (EDD), where you define checks for an agent's work and use them during development.

In plain words
What is it for?
Use it to create and run evaluations for Claude Code coding tasks and to guide development around measurable results.
Why use it?
It helps reveal whether an agent session produced the expected result instead of relying only on informal review.

Skill for Claude CodeCodex

Written for Claude Code and Codex: installed under .claude/, but also agents/openai.yaml present.

This is tan-yong-sheng/triliumnext-mcp's own configuration. It tells Claude Code and Codex how to work on triliumnext-mcp itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything triliumnext-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to tan-yong-sheng/triliumnext-mcp. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/tan-yong-sheng/triliumnext-mcp/main/.claude/skills/eval-harness/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/tan-yong-sheng/triliumnext-mcp

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 eval-harness

README.md
[![agentmods](https://agentmods.dev/badge/skills/tan-yong-sheng/triliumnext-mcp/eval-harness/github.svg)](https://agentmods.dev/skills/tan-yong-sheng/triliumnext-mcp/eval-harness)
Your own site
<a href="https://agentmods.dev/skills/tan-yong-sheng/triliumnext-mcp/eval-harness"><img src="https://agentmods.dev/badge/skills/tan-yong-sheng/triliumnext-mcp/eval-harness/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 eval-harness

Your own site · 80×15
<a href="https://agentmods.dev/skills/tan-yong-sheng/triliumnext-mcp/eval-harness"><img src="https://agentmods.dev/badge/skills/tan-yong-sheng/triliumnext-mcp/eval-harness.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,405 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00019 $0.01405
Opus 5 $0.00010 $0.00702
Sonnet 5 $0.00004 $0.00281
Haiku 4.5 $0.00002 $0.00140

Measured 12d ago against content hash 0bc29828b0b2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

eval-harness 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 12d 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.

.claude/skills/eval-harness/SKILL.md · 237 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 12d ago First seen · 237 lines · 19 tokens per session scan A 0bc29828b0b2

Subscribe to this mod's changes

eval-harness is a skill published in the GitHub repository tan-yong-sheng/triliumnext-mcp (69 stars, last pushed 5mo ago), with no licence file. It adds 19 tokens to every session and 1,405 once invoked, about $0.0001 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.

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