obsidian-tc: Skill for Claude Code

.claude/skills/verify-ticket-premise/SKILL.md

verify-ticket-premise is a skill for Claude Code from The-40-Thieves/obsidian-tc. It costs 49 tokens per session (1,243 once invoked), scanned A, original, AGPL-3.0.

A pre-coding check for Linear tickets in this repository. It compares the ticket's central claim, cited file-and-line references, and counts with the current code at HEAD.

In plain words
What is it for?
Use it before implementing a Linear ticket to receive a HOLDS, PARTLY STALE, or FALSE assessment.
Why use it?
It prevents implementation work from starting with a ticket that is already outdated or based on a false premise.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is The-40-Thieves/obsidian-tc's own configuration. It tells Claude Code how to work on obsidian-tc 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 obsidian-tc configures →

Reuse

Borrowing it

Nothing to install: this file belongs to The-40-Thieves/obsidian-tc. 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/The-40-Thieves/obsidian-tc/main/.claude/skills/verify-ticket-premise/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/The-40-Thieves/obsidian-tc

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 verify-ticket-premise

README.md
[![agentmods](https://agentmods.dev/badge/skills/the-40-thieves/obsidian-tc/verify-ticket-premise/github.svg)](https://agentmods.dev/skills/the-40-thieves/obsidian-tc/verify-ticket-premise)
Your own site
<a href="https://agentmods.dev/skills/the-40-thieves/obsidian-tc/verify-ticket-premise"><img src="https://agentmods.dev/badge/skills/the-40-thieves/obsidian-tc/verify-ticket-premise/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-ticket-premise

Your own site · 80×15
<a href="https://agentmods.dev/skills/the-40-thieves/obsidian-tc/verify-ticket-premise"><img src="https://agentmods.dev/badge/skills/the-40-thieves/obsidian-tc/verify-ticket-premise.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 49 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,243 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 $0.00049 $0.01243
Opus 5 $0.00024 $0.00622
Sonnet 5 $0.00010 $0.00249
Haiku 4.5 $0.00005 $0.00124

Measured 11d ago against content hash ed6f09f6d6db, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

verify-ticket-premise 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 11d 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/verify-ticket-premise/SKILL.md · 100 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

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.

  1. 11d ago First seen · 100 lines · 49 tokens per session scan A ed6f09f6d6db

Subscribe to this mod's changes

verify-ticket-premise is a skill published in the GitHub repository The-40-Thieves/obsidian-tc (5 stars, last pushed yesterday), licensed AGPL-3.0. It adds 49 tokens to every session and 1,243 once invoked, about $0.0002 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 2026-08-31.

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