Borrowing it
Nothing to install: this file belongs to chisomobanzi/Serpentine3D. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/chisomobanzi/Serpentine3D/main/AGENTS.mdgit clone --depth 1 https://github.com/chisomobanzi/Serpentine3DWrote 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/chisomobanzi/serpentine3d/agents-md)<a href="https://agentmods.dev/instructions/chisomobanzi/serpentine3d/agents-md"><img src="https://agentmods.dev/badge/instructions/chisomobanzi/serpentine3d/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.
<a href="https://agentmods.dev/instructions/chisomobanzi/serpentine3d/agents-md"><img src="https://agentmods.dev/badge/instructions/chisomobanzi/serpentine3d/agents-md.svg" alt="Reviewed on agentmods" width="80" 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 5.1 | $0.00664 | $0.00664 |
| Opus 5 | $0.00332 | $0.00332 |
| Sonnet 5 | $0.00133 | $0.00133 |
| Haiku 4.5 | $0.00066 | $0.00066 |
Grade A, and why
Serpentine3D 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- flux-topology-mcp AGENTS.md — 88% identical, 9 lines differ
How it starts
The opening of the file, as written. The whole thing — 51 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Graft — repo context graph
This repo is indexed in graft/: small linked markdown nodes that explain each
system and carry exact file:line spans, kept in sync with the code through git.
For ANY task here — understanding how something works, finding where code lives,
or scoping a change — get context from the graph before grepping or opening
source files. Re-ask freely (it's cheap) and reuse literal identifiers you
already have (symbol, error string, file name) as the query. New to this repo?
Run graft map first — a token-budgeted orientation (dir clusters, hubs,
hotspots), no LLM, no key.
- Run
graft ask "<your question>" --source→ ranked nodes with the relevant code spans inlined (each hit's ≤8-line crux by default;--fullfor whole definitions when the crux isn't enough). Match the tool to the task shape: for understanding or editing, the top node IS the answer — cite itscovers:file:line spans and edit straight from--source. For exhaustive tasks ("every occurrence / every caller of this pattern"), ranked results are top-N, not complete — rungraft grep "<literal>"instead (exhaustive over indexed files, grouped by enclosing symbol), falling back to rawgrep -rnonly for unindexed files. graft skeleton <file>→ every definition's signature + span, ~10× cheaper than reading the file; use it to skim an API surface.graft callers <symbol>gives precomputed, exact edges — who calls this. Add--direction outfor what it calls, or--depth Nto walk transitively for the full blast radius. For structural questions, skip ranking and use this directly.- Or browse:
graft/INDEX.mdlists every node; follow the links. - Monorepos and folders of multiple repos rank fairly across sub-projects —
hits carry
[scope/]labels naming which one they're from. Narrow withgraft ask "<task>" --in <scope>/once you know where you're working.
If a returned span is truncated ("+N more lines"), open the file at that exact range before finalizing. Only open source files when a node genuinely lacks a needed detail, and then at the exact file:line the node points to — never re-read whole files.
After big code changes, refresh the graph with graft build (deterministic,
no API key, $0).
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.
- yesterday First seen · 51 lines · 664 tokens per session scan A f3bd5507bfe9
Serpentine3D AGENTS.md is an instructions file published in the GitHub repository chisomobanzi/Serpentine3D (32 stars, last pushed yesterday), licensed MIT. It adds 664 tokens to every session, about $0.0033 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 2026-09-07.
Other instructions, from other repositories
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langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.