sentry-mcp: Instructions file for Codex

AGENTS.md

sentry-mcp AGENTS.md is an instructions file for Codex, OpenCode from VitalyOstanin/sentry-mcp. It costs 1,739 tokens per session, scanned A, original, MIT.

Repository instructions for sentry-mcp covering contributions, planning, documentation, language, building, and linting. Linting checks code for common style and correctness problems.

In plain words
What is it for?
Use them when planning or implementing sentry-mcp changes, updating its documentation, and checking the project before release.
Why use it?
They give agents a consistent process and require fresh build and lint checks before changes are published. They also keep the English and Russian README files aligned.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions CLAUDE.md; mentions AGENTS.md.

This is VitalyOstanin/sentry-mcp's own configuration. It tells Codex and OpenCode how to work on sentry-mcp 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 sentry-mcp configures →

Reuse

Borrowing it

Nothing to install: this file belongs to VitalyOstanin/sentry-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/VitalyOstanin/sentry-mcp/master/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/VitalyOstanin/sentry-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.

agentmods badge for sentry-mcp AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/vitalyostanin/sentry-mcp/agents-md/github.svg)](https://agentmods.dev/instructions/vitalyostanin/sentry-mcp/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/vitalyostanin/sentry-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/vitalyostanin/sentry-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.

agentmods 80×15 button for sentry-mcp AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/vitalyostanin/sentry-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/vitalyostanin/sentry-mcp/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,739 This file is loaded in full into every session.
When invoked 1,739 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.01739 $0.01739
Opus 5 $0.00870 $0.00870
Sonnet 5 $0.00348 $0.00348
Haiku 4.5 $0.00174 $0.00174

Measured 9d ago against content hash d7262f1779ad, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

sentry-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 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.

AGENTS.md · 131 lines

How it starts

The opening of the file, as written. The whole thing — 131 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Repository Guidelines

Contributor Notes

  • Keep source code, comments, documentation, and commit messages in English.
  • Run npm run build and npx eslint . before publishing changes to ensure type-checking and linting stay green.
  • When formatting or refactoring code, default to running npx eslint --fix (without dry-run) so lintable issues are auto-corrected early.
  • Maintain README.md in English and README-ru.md in Russian so both stay aligned with the Sentry MCP feature set.

Planning Workflow

  • Always create a plan document before implementation for non-trivial tasks (new features, significant refactoring, or multi-file changes).
  • Plan documents must be stored in temp/ directory with descriptive filenames (e.g., temp/issues-filtering-plan.md).
  • All plan documents must include a Table of Contents (TOC) for easy navigation.
  • Rule: Documentation changes come before code changes - When a task requires both adding new rules/guidelines and implementing them:
    1. First, update AGENTS.md with new rules and best practices
    2. Then, implement the code changes following those rules
    3. This ensures guidelines are documented before they become implicit knowledge
  • Plan document structure should include:
    • Overview and motivation
    • Detailed implementation steps with file references and line numbers where applicable
    • Type definitions and interfaces
    • API endpoints and parameters
    • Error handling strategy
    • Testing approach
    • Files to be modified with estimated line counts
  • Use the plan as a checklist during implementation - mark sections as completed as you progress.

Documentation Guidelines

Language Policy

  • This AGENTS.md must always be written in English. Do not localize or translate this file.
  • Examples, code snippets, and rule text in this file should remain in English for consistency across all contributors and tools.
  • Use professional style without emojis in all documentation, commit messages, and code comments.
  • Keep documentation clear, concise, and technically accurate.
  • Focus on technical content rather than decorative elements.
  • All Markdown files must include a Table of Contents (TOC) after the main heading and before the first section.
  • TOC should use standard Markdown anchor links (e.g., [Overview](#overview)).
  • Include all level 2 (##) and level 3 (###) headers in the TOC for easy navigation.
  • Update the TOC whenever document structure changes (new sections, renamed headers, etc.).
  • Example TOC format:
    ## Table of Contents
    - [Section 1](#section-1)
      - [Subsection 1.1](#subsection-11)
    - [Section 2](#section-2)
    

Read the full file on GitHub · 131 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 · 131 lines · 1,739 tokens per session scan A d7262f1779ad

Subscribe to this mod's changes

sentry-mcp AGENTS.md is an instructions file published in the GitHub repository VitalyOstanin/sentry-mcp (0 stars, last pushed 2d ago), licensed MIT. It adds 1,739 tokens to every session, about $0.0087 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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