trust-source-check

trust-source-check is a skill for Claude Code from sina-heidariaan/cold-run. It costs 86 tokens per session (2,206 once invoked), scanned A, original, no licence file.

A security review for code that decides who a person is or what they are allowed to do. It checks whether identity information comes from a trusted source and requires the target to be derived from that verified identity.

In plain words
What is it for?
Use it when reviewing endpoints or other code that makes identity or authorization decisions.
Why use it?
It helps prevent access decisions based on user-controlled data such as network location, request IDs, unsigned headers, or shared tokens.

Skill for Claude Code

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

Part of the cold-run plugin — 24 skills, 3 commands, 1 MCP server shipped together

Good fit Use it when reviewing endpoints or other code that makes identity or authorization decisions.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/sina-heidariaan/cold-run/trust-source-check
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 sina-heidariaan/cold-run --skill trust-source-check
Clone the repo
git clone --depth 1 https://github.com/sina-heidariaan/cold-run

Made for: Claude Code.

Or install cold-run, the plugin that ships this one along with the rest of its 24 skills, 3 commands, 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 trust-source-check

README.md
[![agentmods](https://agentmods.dev/badge/skills/sina-heidariaan/cold-run/trust-source-check/github.svg)](https://agentmods.dev/skills/sina-heidariaan/cold-run/trust-source-check)
Your own site
<a href="https://agentmods.dev/skills/sina-heidariaan/cold-run/trust-source-check"><img src="https://agentmods.dev/badge/skills/sina-heidariaan/cold-run/trust-source-check/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 trust-source-check

Your own site · 80×15
<a href="https://agentmods.dev/skills/sina-heidariaan/cold-run/trust-source-check"><img src="https://agentmods.dev/badge/skills/sina-heidariaan/cold-run/trust-source-check.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 86 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,206 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00086 $0.02206
Opus 5 $0.00043 $0.01103
Sonnet 5 $0.00017 $0.00441
Haiku 4.5 $0.00009 $0.00221

Measured 9d ago against content hash 582b36f30b71, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

trust-source-check scanned grade A with 1 finding 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl `/internal/users/<any id>/plan` and read every customer's plan, with no credential at all;
skills/trust-source-check/SKILL.md · 148 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

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 · 148 lines · 86 tokens per session scan A 582b36f30b71

Subscribe to this mod's changes

trust-source-check is a skill published in the GitHub repository sina-heidariaan/cold-run (0 stars, last pushed 18d ago), with no licence file. It adds 86 tokens to every session and 2,206 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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