ninenine-mcp: Instructions file for Codex

AGENTS.md

ninenine-mcp AGENTS.md is an instructions file for Codex, OpenCode from davidmosiah/ninenine-mcp. It costs 227 tokens per session, scanned A, original, MIT.

Project instructions for an unofficial local-first 99 passenger-service connector. 99 is a Brazilian transport platform, and this connector is intended for personal ride-hailing tasks.

In plain words
What is it for?
Use it to develop or maintain the connector, inspect ride-related capabilities, and test personal ride-hailing workflows.
Why use it?
It documents setup, testing, token safety, and rules that keep ride requests disabled unless required safeguards are satisfied. It does not cover 99Food, payments, deliveries, or corporate rides.

Instructions file for CodexOpenCode

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

This is davidmosiah/ninenine-mcp's own configuration. It tells Codex and OpenCode how to work on ninenine-mcp 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 ninenine-mcp configures →

Reuse

Borrowing it

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

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.

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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.

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Per session 227 This file is loaded in full into every session.
When invoked 227 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 $0.00227 $0.00227
Opus 5 $0.00113 $0.00113
Sonnet 5 $0.00045 $0.00045
Haiku 4.5 $0.00023 $0.00023

Measured 8d ago against content hash 028dac3649aa, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

ninenine-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 8d 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 · 21 lines

What it actually says

Agent notes

Unofficial local-first 99 passenger MCP. Personal ride hail for David / Life / Grok Bot.

Commands

  • npm ci
  • npm test (typecheck, build, smoke, mutation gate, redaction, handlers, secret-scan)
  • npx ninenine-mcp-unofficial doctor
  • npx ninenine-mcp-unofficial call ninenine_capabilities --json '{}'
  • Skill: skill/SKILL.md (copy into the agent's skills dir; do not duplicate the API client)

Rules

  • Never commit tokens or ~/.ninenine-mcp/.
  • Never enable NINENINE_ALLOW_MUTATIONS in default examples.
  • ninenine_request_ride must stay fail-closed in tests without both gates.
  • Do not add this connector to the Delx Wellness registry (mobility, not wellness).
  • Do not ship 99Food, 99Pay, 99Entrega, or corp /v2/rides.
  • Live 99 login is not required for CI.
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. 8d ago First seen · 21 lines · 227 tokens per session scan A 028dac3649aa

Subscribe to this mod's changes

ninenine-mcp AGENTS.md is an instructions file published in the GitHub repository davidmosiah/ninenine-mcp (1 stars, last pushed 7d ago), licensed MIT. It adds 227 tokens to every session, about $0.0011 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.

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