Borrowing it
Nothing to install: this file belongs to nodestark/mdb-esp32-cashless. 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/nodestark/mdb-esp32-cashless/main/AGENTS.mdgit clone --depth 1 https://github.com/nodestark/mdb-esp32-cashlessWrote 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/nodestark/mdb-esp32-cashless/agents-md)<a href="https://agentmods.dev/instructions/nodestark/mdb-esp32-cashless/agents-md"><img src="https://agentmods.dev/badge/instructions/nodestark/mdb-esp32-cashless/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/nodestark/mdb-esp32-cashless/agents-md"><img src="https://agentmods.dev/badge/instructions/nodestark/mdb-esp32-cashless/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 | $0.01570 | $0.01570 |
| Opus 5 | $0.00785 | $0.00785 |
| Sonnet 5 | $0.00314 | $0.00314 |
| Haiku 4.5 | $0.00157 | $0.00157 |
Grade A, and why
mdb-esp32-cashless AGENTS.md scanned grade A with 1 finding 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 9d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -X POST 'https://supabase.vmflow.xyz/auth/v1/token?grant_type=password' \ How it starts
The opening of the file, as written. The whole thing — 124 lines — stays where its author put it; the contents beside it link to each section on GitHub.
VMflow — Agent Context
Drop-in context for AI agents managing a VMflow vending fleet. Two control planes: MQTT RPC (real-time, signed, device-direct) and Supabase REST (data, credits, telemetry history).
Each device is identified by its <subdomain> (e.g. 51) and holds a per-device
passkey used for both credit XOR encoding and RPC HMAC signing.
1. MQTT RPC — real-time device control
Signed commands sent straight to a device over MQTT. Authentication is an HMAC, not a session — every message is self-contained and expires fast.
Envelope
<cmd>:<ts>:<hmac>
cmd— one of the commands belowts— UTC epoch seconds (date +%s)hmac—HMAC-SHA256(passkey, "<cmd>:<ts>"), lowercase hex
Commands that take arguments (e.g. credit) extend the envelope to
<cmd>:<args>:<ts>:<hmac>; the HMAC then covers everything before the last colon.
Freshness: device accepts only if |now - ts| <= 10s. Sign at send time; do not cache signatures.
Topics
| Direction | Topic |
|---|---|
| Publish (command) | <subdomain>.vmflow.xyz/rpc |
| Generic ack | domain.vmflow.xyz/<subdomain>/rpc/confirm (ok) — fired for every command |
| Command reply | domain.vmflow.xyz/<subdomain>/rpc/<cmd> — only for commands with a payload |
Broker host: mqtt.vmflow.xyz. (<subdomain>.vmflow.xyz is the topic prefix, not a hostname.)
Commands
| cmd | Effect | Reply topic |
|---|---|---|
info |
Publish device snapshot JSON (see schema) | .../rpc/info |
credit |
Grant credit. Envelope credit:<amount>:<ts>:<hmac>, <amount> in 1/100 units (cents) |
.../rpc/credit (ok) |
echo |
Liveness / RTT probe — replies with the request ts |
.../rpc/echo |
ota |
OTA update. Envelope ota:<tag>:<ts>:<hmac>, omit <tag> for latest |
.../rpc/confirm |
dex |
Trigger EVA-DTS DEX/DDCMP telemetry pull from the VMC | .../rpc/confirm |
oos |
Send MDB "command out of sequence" to the VMC | .../rpc/confirm |
buzzer |
1s beep (physical locate) | .../rpc/confirm |
restart |
Reboot the device after 3s | .../rpc/confirm |
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.
- 9d ago First seen · 124 lines · 1,570 tokens per session scan A 78e6539f01b2
mdb-esp32-cashless AGENTS.md is an instructions file published in the GitHub repository nodestark/mdb-esp32-cashless (168 stars, last pushed 12d ago), licensed MIT. It adds 1,570 tokens to every session, about $0.0078 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other instructions, from other repositories
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AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
codex AGENTS.md
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vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
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.