What is proton-bridge-mcp AGENTS.md?

Repository instructions for a project that sends and verifies threaded replies through Proton Mail Bridge. Proton Mail Bridge is a local service that lets programs use Proton Mail through email protocols such as SMTP and IMAP.

Use them when finding a conversation anchor, preparing or sending a threaded reply through SMTP, checking the sent message, and handling credentials safely.

They reduce the risk of replies becoming separate conversations or being sent without the required checks and permission.

How krantiutils/proton-bridge-mcp configures Codex and OpenCode

Reuse

Borrowing it

Nothing to install: this file belongs to krantiutils/proton-bridge-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/krantiutils/proton-bridge-mcp/main/AGENTS.md

Clone the repo

git clone --depth 1 https://github.com/krantiutils/proton-bridge-mcp

Made for: Codex, OpenCode.

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/krantiutils/proton-bridge-mcp/agents-md/github.svg)](https://agentmods.dev/instructions/krantiutils/proton-bridge-mcp/agents-md)

Your own site

<a href="https://agentmods.dev/instructions/krantiutils/proton-bridge-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/krantiutils/proton-bridge-mcp/agents-md/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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/krantiutils/proton-bridge-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/krantiutils/proton-bridge-mcp/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 144 This file is loaded in full into every session.

When invoked 144 The same file — it is already loaded in full.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00144	$0.00144
Opus 5.5	$0.00058	$0.00058
Sonnet 5.5	$0.00029	$0.00029
Haiku 4.5	$0.00014	$0.00014

Measured 2mo ago against content hash 77712a4eaed7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

proton-bridge-mcp AGENTS.md 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 2mo 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.

AGENTS.md · 20 lines

What it actually says

Agent Notes

This repository is intended for coding agents that need to send or verify Proton Mail Bridge replies.

Use the SMTP path for actual threaded sends. Avoid IMAP APPEND for reply drafts, because Proton Bridge can rewrite the draft into a new Proton-internal conversation.

Safe threaded-send checklist:

Find the thread anchor with proton_latest_thread_anchor.
Confirm the sender, subject, message_id, and references.
Dry-run the reply tool.
Ask for explicit permission before setting confirm_send: true.
Verify the sent copy with proton_verify_sent.

Credentials must come from environment variables and must not be committed.

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.

2mo ago First seen · 20 lines · 144 tokens per session scan A 77712a4eaed7

Subscribe to this mod's changes

proton-bridge-mcp AGENTS.md is an instructions file published in the GitHub repository krantiutils/proton-bridge-mcp (0 stars, last pushed 5mo ago), licensed MIT. It adds 144 tokens to every session, about $0.0006 per session on Opus 5.5. 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.

proton-bridge-mcp AGENTS.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
proton-bridge-mcp AGENTS.mdkrantiutils/proton-bridge-mcp	Instructions file	0	5mo ago	MIT	A	144	Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	today	MIT	A	7,461	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	5,649	GitHub Copilot
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	today	MIT	A	4,680	Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	3,093	GitHub Copilot
vscode model-prompts.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	2,022	GitHub Copilot

proton-bridge-mcp: Instructions file for Codex