Blacknode AGENTS.md

Repository instructions for Blacknode, a system for building and running visual workflow graphs. They explain where the main code, editor, runtime, templates, and tests live.

In plain words
What is it for?
Use them when creating or validating workflows, changing the editor or runtime, adding reusable nodes, modifying the MCP API, or working on extension packages.
Why use it?
They help coding agents choose the correct workflow or development process and follow the repository's change rules.

Instructions file for CodexOpenCode

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.

agentmods
npx agentmods add instructions/temiroff/blacknode/agents-md
Clone the repo
git clone --depth 1 https://github.com/temiroff/Blacknode

Made for: Codex, OpenCode.

Per session 1,885 This file is loaded in full into every session.
When invoked 1,885 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.01885 $0.01885
Opus 5 $0.00942 $0.00942
Sonnet 5 $0.00377 $0.00377
Haiku 4.5 $0.00188 $0.00188

Measured yesterday against content hash 1e8e3b5aba9e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

Blacknode 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 yesterday.

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 · 162 lines

How it starts

The opening of the file, as written. The whole thing — 162 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Blacknode Agent Instructions

These instructions apply to the Blacknode core repository. Extension packages under packages/ are separate Git repositories and carry their own AGENTS.md.

Route the task

  • Use .agents/skills/blacknode-workflow/SKILL.md when the requested result is a workflow graph, template, editor run, replay, validation, or export.
  • Use .agents/skills/blacknode-development/SKILL.md when changing Blacknode, adding a reusable node, modifying the editor/runtime/MCP API, or creating an extension package.
  • When a workflow exposes a missing reusable capability, switch to the development skill, implement and test it, then return to the workflow skill to integrate and validate the graph.

Repository map

Area Responsibility
python/blacknode/ Python graph model, runtime, nodes, CLI, packages, exporters, and MCP
editor-server/ FastAPI editor backend, runtime services, sessions, and run replay
editor/ React/TypeScript visual editor
crates/ Rust types, core, runtime, Python bindings, and CLI
templates/ Tracked reusable workflow graphs
tests/ Core Python and integration tests
packages/ Independently versioned extension-package checkouts

Change rules

  • Inspect the live node schema or the node decorator contract before adding or connecting ports. Do not invent port names or persisted runtime fields.
  • Keep core broadly useful. Put hardware stacks, large optional dependencies, and domain-specific integrations in extension packages.
  • Preserve compatibility for saved workflow node names unless a migration is included. New workflows should use the current generic names.
  • Keep templates portable: declare kind, schema_version, an explicit entrypoint, complete port metadata, and any metadata.required_packages.
  • Never commit API keys, run logs, local workflows, editor state, caches, robot calibration data, or generated scratch exports.
  • Treat camera, CUDA, ROS, and robot streams as managed services. Do not turn a one-shot cook into a polling loop.
  • Keep physical motion disarmed by default. Retain stale-data, joint-limit, and shutdown safeguards in every transport path.

Read the full file on GitHub · 162 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. yesterday First seen · 162 lines · 1,885 tokens per session scan A 1e8e3b5aba9e

Subscribe to this mod's changes

Blacknode AGENTS.md is an instructions file published in the GitHub repository temiroff/Blacknode (23 stars, last pushed 2d ago), licensed Apache-2.0. It adds 1,885 tokens to every session, about $0.0094 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 2026-08-30.