terminal-bench-science: Skill for Claude Code

.claude/skills/update-rubric/SKILL.md

update-rubric is a skill for Claude Code from harbor-framework/terminal-bench-science. It costs 20 tokens per session (738 once invoked), scanned A, original, Apache-2.0.

A workflow for proposing new checks in a task-implementation rubric, a documented list of review criteria. It drafts the criteria and opens a branch and pull request for them.

In plain words
What is it for?
Use it after reviewing tasks to add general lessons to the benchmark repository’s rubric, or run it with your own proposed criteria.
Why use it?
It helps turn repeated review findings into lasting checks instead of relying on reviewers to remember the same issues each time.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: mentions Claude Code.

This is harbor-framework/terminal-bench-science's own configuration. It tells Claude Code how to work on terminal-bench-science 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 terminal-bench-science configures →

Reuse

Borrowing it

Nothing to install: this file belongs to harbor-framework/terminal-bench-science. 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/harbor-framework/terminal-bench-science/main/.claude/skills/update-rubric/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/harbor-framework/terminal-bench-science

Made for: Claude Code.

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 update-rubric

README.md
[![agentmods](https://agentmods.dev/badge/skills/harbor-framework/terminal-bench-science/update-rubric.svg)](https://agentmods.dev/skills/harbor-framework/terminal-bench-science/update-rubric)
Your own site
<a href="https://agentmods.dev/skills/harbor-framework/terminal-bench-science/update-rubric"><img src="https://agentmods.dev/badge/skills/harbor-framework/terminal-bench-science/update-rubric.svg" alt="Measured on agentmods" height="20"></a>
Per session 20 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 738 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00020 $0.00738
Opus 5 $0.00010 $0.00369
Sonnet 5 $0.00004 $0.00148
Haiku 4.5 $0.00002 $0.00074

Measured 9d ago against content hash faa8eeb4e117, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

update-rubric 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 9d 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/update-rubric/SKILL.md · 105 lines

How it starts

The opening of the file, as written. The whole thing — 105 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Propose new criteria for the task implementation rubric. This is typically invoked after /review-task identifies general patterns that should be caught for all future tasks.

Run this from within your local clone of the benchmark repo.

Step 1: Read Current Rubric

Detect the repo root and read the current rubric to understand the format:

REPO_ROOT=$(git rev-parse --show-toplevel)
cat "$REPO_ROOT/rubrics/task-implementation.toml"

Each criterion follows this TOML format:

[[criteria]]
name = "criterion_name"
description = "One-line description"
guidance = """
Multi-line guidance explaining what to check.

PASS if ... FAIL if ..."""

Step 2: Accept Criteria Descriptions

Parse $ARGUMENTS for the criteria to add. If invoked from /review-task, the rubric improvement candidates will be described in the review summary. If invoked standalone, the user provides a description of what to add.

For each candidate, draft a new [[criteria]] entry matching the existing format:

  • name: snake_case, concise
  • description: one-line summary
  • guidance: detailed explanation with PASS/FAIL conditions

Present the drafted criteria to the user for review before proceeding.

Step 3: Create Branch and Apply Changes

Detect the GitHub remote and create a branch:

REPO_ROOT=$(git rev-parse --show-toplevel)
GITHUB_REPO=$(git remote get-url origin | sed 's|.*github.com[:/]\(.*\)\.git$|\1|; s|.*github.com[:/]\(.*\)$|\1|')
BRANCH="rubric/add-criteria-$(date +%Y%m%d)"

cd "$REPO_ROOT"
git checkout -b "$BRANCH"

Append the new [[criteria]] entries to rubrics/task-implementation.toml.

Step 4: Commit, Push, and Create PR

cd "$REPO_ROOT"
git add rubrics/task-implementation.toml
git commit -m "Add rubric criteria: <brief description>"
git push -u origin "$BRANCH"
gh pr create --repo "$GITHUB_REPO" \
  --title "Add rubric criteria: <brief description>" \
  --body "$(cat <<'EOF'
## Summary
- Adds new criteria to `rubrics/task-implementation.toml` based on patterns observed during task review

## New Criteria
<list each new criterion name and one-line description>

## Motivation
<which review or PR prompted this, what pattern was observed>

## Test plan
- [ ] Run `harbor check` against existing tasks to verify new criteria don't cause false positives
- [ ] Verify TOML syntax is valid

Generated with [Claude Code](https://claude.ai/claude-code)
EOF
)"

Read the full file on GitHub · 105 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. 9d ago First seen · 105 lines · 20 tokens per session scan A faa8eeb4e117

Subscribe to this mod's changes

update-rubric is a skill published in the GitHub repository harbor-framework/terminal-bench-science (548 stars, last pushed today), licensed Apache-2.0. It adds 20 tokens to every session and 738 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.