ensemble: Instructions file for Codex

AGENTS.md

ensemble AGENTS.md is an instructions file for Codex, OpenCode from LynkByte/ensemble. It costs 1,001 tokens per session, scanned A, original, MIT.

A set of AGENTS.md instructions for Ensemble, a local Python server that gives coding agents shared memory, codebase indexing, model routing, and other tools.

In plain words
What is it for?
Use it when working on Ensemble: install or register its MCP server, add agent or skill files, start its local dashboard, run tests, lint, type checks, or build the package.
Why use it?
It tells agents how the project is organised, which commands are available, and how to run checks without sending requests to language-model APIs.

Instructions file for CodexOpenCode

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

This is LynkByte/ensemble's own configuration. It tells Codex and OpenCode how to work on ensemble 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 ensemble configures →

Reuse

Borrowing it

Nothing to install: this file belongs to LynkByte/ensemble. 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/LynkByte/ensemble/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/LynkByte/ensemble

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 ensemble AGENTS.md

README.md
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Your own site
<a href="https://agentmods.dev/instructions/lynkbyte/ensemble/agents-md"><img src="https://agentmods.dev/badge/instructions/lynkbyte/ensemble/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 ensemble AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/lynkbyte/ensemble/agents-md"><img src="https://agentmods.dev/badge/instructions/lynkbyte/ensemble/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,001 This file is loaded in full into every session.
When invoked 1,001 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 $0.01001 $0.01001
Opus 5.5 $0.00400 $0.00400
Sonnet 5.5 $0.00200 $0.00200
Haiku 4.5 $0.00100 $0.00100

Measured 2mo ago against content hash b95da61ca934, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

ensemble 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 · 77 lines

How it starts

The opening of the file, as written. The whole thing — 77 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

Overview

Python MCP server (ensemble-mcp) providing vector memory, drift detection, model routing, skills discovery, session management, codebase indexing, context compression, prompt caching, and a local web dashboard. Fully implemented — 19 MCP tools across 11 subpackages, CLI with serve/install/uninstall/add-agents/add-skills/web commands.

Commands

pip install -e .                  # editable install
ensemble-mcp                      # run server (or: python -m ensemble_mcp)
ensemble-mcp install              # auto-detect AI tools and register MCP
ensemble-mcp uninstall            # remove MCP registration from AI tool configs
ensemble-mcp add-agents           # copy agent files (no MCP registration)
ensemble-mcp add-skills           # copy skill files (no MCP registration)
ensemble-mcp web                  # launch web dashboard at localhost:8787
ensemble-mcp web --port 9000      # custom port
ensemble-mcp web --no-open        # start without auto-opening browser
python -m pytest tests/           # run tests
ruff check src/ tests/            # lint
ruff format src/ tests/           # format
mypy src/                         # typecheck
python -m build                   # build sdist + wheel
docker build -t ensemble-mcp .    # build container

ruff and mypy are fully configured in pyproject.toml (strict mode, Python 3.11 target).

Architecture

src layout — package lives at src/ensemble_mcp/, mapped via [tool.hatch.build.targets.wheel].

Entry point: __main__.py → server.serve() (stdio MCP server).

Subpackage Role
config/ Layered settings, defaults
contracts/ Response envelope and error taxonomy
memory/ ONNX embeddings, SQLite vector store, cosine similarity
security/ Secret redaction, trust boundary enforcement
state/ Session/step lifecycle, idempotency, locks
tools/ 19 MCP tool implementations + call-recording utility (8 categories below)
installer/ Auto-detect AI tools, register MCP server
dashboard/ Web dashboard: aiohttp server, JSON API, Alpine.js SPA
compress/ Rule-based text compression engine
cli/ Startup banner
data/ Bundled agent and skill files

Read the full file on GitHub · 77 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 · 77 lines · 1,001 tokens per session scan A b95da61ca934

Subscribe to this mod's changes

ensemble AGENTS.md is an instructions file published in the GitHub repository LynkByte/ensemble (1 stars, last pushed 3mo ago), licensed MIT. It adds 1,001 tokens to every session, about $0.0040 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.

Related

ensemble AGENTS.md compared with instructions from other repositories

ensemble AGENTS.md next to 6 instructions from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
ensemble AGENTS.mdLynkByte/ensembleInstructions file13mo agoMITA1,001Codex, OpenCode
vscode buildNext.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA9,719GitHub Copilot
next.js AGENTS.mdvercel/next.jsInstructions file143kyesterdayMITA7,461Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchainInstructions file149kyesterdayMITA4,680Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA5,516GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file274k2d agoMITA4,313Codex, OpenCode