dedalus-mcp-python: Instructions file for Codex

AGENTS.md

dedalus-mcp-python AGENTS.md is an instructions file for Codex, OpenCode from Dash-096/dedalus-mcp-python. It costs 1,657 tokens per session, scanned A, a copy of dedalus-mcp-python AGENTS.md, MIT.

A set of coding instructions for the Dedalus MCP Python project, including repository guidance, test-driven development, and support for eliciting requirements. Test-driven development, or TDD, means writing tests that define expected behavior before the implementation.

In plain words
What is it for?
Use it when an AI coding agent is changing the Dedalus MCP Python repository. It helps locate related code, consult the specification, follow project patterns, and write tests first.
Why use it?
Contributors can miss existing code, project conventions, or the relevant MCP specification when starting work. These instructions provide checks to complete before coding and a defined testing workflow.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md.

This is Dash-096/dedalus-mcp-python's own configuration. It tells Codex and OpenCode how to work on dedalus-mcp-python 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 dedalus-mcp-python configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Dash-096/dedalus-mcp-python. 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/Dash-096/dedalus-mcp-python/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/Dash-096/dedalus-mcp-python

Made for: Codex, OpenCode.

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Per session 1,657 This file is loaded in full into every session.
When invoked 1,657 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 100% copy Near-identical to another mod 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 $0.01657 $0.01657
Opus 5.5 $0.00663 $0.00663
Sonnet 5.5 $0.00331 $0.00331
Haiku 4.5 $0.00166 $0.00166

Measured 2mo ago against content hash 41c5315910e6, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

dedalus-mcp-python 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.

Origin

This is a copy

100% identical to dedalus-mcp-python AGENTS.md — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

AGENTS.md · 192 lines

How it starts

The opening of the file, as written. The whole thing — 192 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Guidelines for Coding Agents

Dedalus MCP implements the Model Context Protocol. Spec-faithful, minimal surface.

Quick Reference

What Where
MCP spec internals/references/modelcontextprotocol/
Reference SDK internals/references/python-sdk/
Server core src/dedalus_mcp/server/core.py
Versioning src/dedalus_mcp/versioning.py
Types src/dedalus_mcp/types/
Tests tests/

Before You Code

Scan wide before you write. Search for logic that already does what you need. Search for logic that could help your implementation. Understand where your contribution fits contextually within this codebase. Don't write a single line until you understand these relationships.

  1. Grep (or rg) the codebase for related functionality. It may already exist!
  2. Find the spec section for what you're implementing
  3. Look at similar existing code for patterns and conventions
  4. Identify code that your implementation should integrate with

Test-Driven Development

Write tests first. This project follows TDD. Don't implement features in a vacuum—define what "correct" looks like before you write production code.

The workflow:

  1. Create or update an execspec — For any significant work, maintain a local EXECSPEC-{topic}.md in docs/dedalus_mcp/. This is your working document: what you're building, what invariants must hold, what's done, what's next.

  2. Write a failing test — Before implementing, write a test that captures an invariant from your execspec. The test should fail because the feature doesn't exist yet.

  3. Make it pass — Write the minimal code to make the test pass. No more.

  4. Refactor — Clean up while tests are green.

  5. Repeat — Each passing test is a small victory. Accumulate these toward the full vision.

Example execspec structure:

# EXECSPEC: Elicitation Support

## Goal
Implement client-side elicitation per MCP 2025-06-18.

## Invariants
- [ ] `elicit()` raises if server doesn't advertise elicitation capability
- [ ] Timeout triggers `ElicitationTimeoutError`
- [ ] Response schema is validated against `ElicitationResult`

## Progress
- [x] Basic request/response flow
- [ ] Timeout handling
- [ ] Schema validation

Read the full file on GitHub · 192 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. 2mo ago First seen · 192 lines · 1,657 tokens per session scan A 41c5315910e6

Subscribe to this mod's changes

dedalus-mcp-python AGENTS.md is an instructions file published in the GitHub repository Dash-096/dedalus-mcp-python (0 stars, last pushed 3mo ago), licensed MIT. It adds 1,657 tokens to every session, about $0.0066 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to dedalus-mcp-python AGENTS.md, differing in 0 lines, and is treated as a copy.

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