safe-api-key-handling

safe-api-key-handling is a cursor rule for Cursor from tealfabric/cursor-mcp-tealfabric. It costs 13 tokens per session (82 once invoked), scanned A, original, Apache-2.0.

A safety rule for handling Tealfabric API credentials, which are secret keys that let software access the service. It defines where those keys must not appear and how to show placeholders instead.

In plain words
What is it for?
Use it when writing code examples, sharing configuration, reviewing commits, or deciding how to store and display Tealfabric API keys.
Why use it?
It prevents credentials from being exposed in source code, logs, documentation, issues, or commits. Exposed keys can allow unauthorized access.

Cursor rule for Cursor

Written for Cursor: a Cursor rule (.mdc).

Good fit Use it when writing code examples, sharing configuration, reviewing commits, or deciding how to store and display Tealfabric API keys.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/tealfabric/cursor-mcp-tealfabric/safe-api-key-handling
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.

Clone the repo
git clone --depth 1 https://github.com/tealfabric/cursor-mcp-tealfabric

Made for: Cursor.

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 safe-api-key-handling

README.md
[![agentmods](https://agentmods.dev/badge/rules/tealfabric/cursor-mcp-tealfabric/safe-api-key-handling/github.svg)](https://agentmods.dev/rules/tealfabric/cursor-mcp-tealfabric/safe-api-key-handling)
Your own site
<a href="https://agentmods.dev/rules/tealfabric/cursor-mcp-tealfabric/safe-api-key-handling"><img src="https://agentmods.dev/badge/rules/tealfabric/cursor-mcp-tealfabric/safe-api-key-handling/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 safe-api-key-handling

Your own site · 80×15
<a href="https://agentmods.dev/rules/tealfabric/cursor-mcp-tealfabric/safe-api-key-handling"><img src="https://agentmods.dev/badge/rules/tealfabric/cursor-mcp-tealfabric/safe-api-key-handling.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 13 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 82 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 $0.00013 $0.00082
Opus 5 $0.00006 $0.00041
Sonnet 5 $0.00003 $0.00016
Haiku 4.5 $0.00001 $0.00008

Measured 9d ago against content hash c80b0e3813dc, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

safe-api-key-handling 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.

plugins/tealfabric-mcp/rules/safe-api-key-handling.mdc · 10 lines

What it actually says

  • Never commit real values for TEALFABRIC_API_KEY.
  • Prefer local prompts or local environment variables for secrets.
  • Do not paste API keys into code examples, docs, issues, or commits.
  • When sharing config, replace keys with placeholders like tf_live_....
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 · 10 lines · 13 tokens per session scan A c80b0e3813dc

Subscribe to this mod's changes

safe-api-key-handling is a cursor rule published in the GitHub repository tealfabric/cursor-mcp-tealfabric (2 stars, last pushed 4mo ago), licensed Apache-2.0. It adds 13 tokens to every session and 82 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 2026-08-31.