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.
npx agentmods add instructions/lburny/symkit-mcp/agents-mdgit clone --depth 1 https://github.com/LBurny/symkit-mcpWrote 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.
[](https://agentmods.dev/instructions/lburny/symkit-mcp/agents-md)<a href="https://agentmods.dev/instructions/lburny/symkit-mcp/agents-md"><img src="https://agentmods.dev/badge/instructions/lburny/symkit-mcp/agents-md.svg" alt="Measured on agentmods" height="20"></a>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 | $0.01728 | $0.01728 |
| Opus 5 | $0.00864 | $0.00864 |
| Sonnet 5 | $0.00346 | $0.00346 |
| Haiku 4.5 | $0.00173 | $0.00173 |
Grade A, and why
symkit-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 5d 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.
How it starts
The opening of the file, as written. The whole thing — 80 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AGENTS.md
Workspace instructions for ZCode agents working in nsforge-mcp-sigma.
Repository Purpose
SymKit MCP (symkit-mcp) — a FastMCP server exposing ~43 MCP tools for symbolic formula derivation over SymPy. Domain-agnostic: physics, engineering, chemistry, biology, economics. The server runs over MCP stdio; AI agents (Claude, etc.) are the clients.
Entry point: src/symkit_mcp/server.py → symkit-mcp console script. The single math() tool covers ~25 symbolic operations; session_* tools manage step-by-step derivations with full provenance persisted to derivation_sessions/.
Major Directories
src/symkit/— Core domain library (DDD-layered, no MCP dependency)domain/— Pure business logic, entities, value objects, services. Must not import external/infra modules.application/— Use cases coordinating Domain ↔ Infrastructure.infrastructure/— SymPy engine, file persistence, external adapters (Wikidata, SciPy, BioModels).resources/— Static resources.
src/symkit_mcp/— MCP presentation layerserver.py— FastMCP entry; eagerly initializesSessionManagerin a worker thread on startup (see Gotchas).tools/— Tool implementations grouped by concern:math.py,session.py,formula.py,codegen.py,symbols.py,assumptions.py,orchestration.py. All register viaregister_all_tools(mcp)in__init__.py.tools/_state.py— Process-global shared state: single_current_sessionand_current_context. All tool modules read/write throughget_session()/set_session()/get_context()/set_context().
formulas/— YAML formula library (library/<category>/*.yaml) andderived/outputs (gitignored).derivation_sessions/— Persisted session JSON (gitignored runtime artifacts).tests/— pytest suite, phase-organized (test_phase1_*…test_phase5_*) plus domain/engine/parser suites. E2E MCP smoke tests (test_mcp_e2e.py,test_mcp_minimal.py) spawn the server in stdio mode via the MCP client SDK.docs/— Design docs (symkit-design.md,composable-formula-modification-engine.md, etc.)..github/bylaws/— Binding sub-laws:ddd-architecture.md,git-workflow.md,python-environment.md.
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.
- 5d ago First seen · 80 lines · 1,728 tokens per session scan A cc0c3855bcd9
symkit-mcp AGENTS.md is an instructions file published in the GitHub repository LBurny/symkit-mcp (10 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 1,728 tokens to every session, about $0.0086 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.
Other instructions, from other repositories
bio-gene-to-reference-tree copilot-instructions.md
Copilot instructions for Hongda-Zhao/bio-gene-to-reference-tree, a project described as: Auditable agent skill for resolving protein queries, selecting references, and planning reproducible phylogenetic trees.
braina GEMINI.md
Instructions for brainets/braina, covering project: braina (brain interaction analysis), 1. project context & purpose, 2. commands, verify environment (all core dependencies) and run the verification test suite for frites + hoi.
research-automation CLAUDE.md
Instructions for lucafusarbassini/research-automation, covering ricet - research automation framework, project overview, claude-flow mcp, workflow habits and file organization.
shannon-prover CLAUDE.md
Claude Code instructions for SkyShannonProver/shannon-prover, covering shannon prover: claude entry point, current boundary, easycrypt environment, eval safety and current documentation.
SciCrucible CLAUDE.md
Claude Code instructions for Xinyang-Li666/SciCrucible, covering 科学知识库, 知识库结构, 可用命令, 项目目录 and 工作原则.
torchcell CLAUDE.md
Claude Code instructions for Mjvolk3/torchcell, covering vision -- the virtual cell (north star), for local configs, git worktrees, programming guide and provenance & reproducibility.