jambavan AGENTS.md

jambavan AGENTS.md is an instructions file for Codex, OpenCode from beingmartinbmc/jambavan. It costs 1,698 tokens per session, scanned A, original, MIT.

A set of project instructions for the Jambavan coding-agent workflow. It tells the agent how to understand requests, choose the smallest correct change, and verify its work.

In plain words
What is it for?
Use it to guide code changes, reviews, and investigations with a strict focus on existing code, simple solutions, and evidence of correctness.
Why use it?
It reduces unnecessary edits, invented work, and fixes that address symptoms instead of causes. It also gives the agent a clear process for handling vague or risky requests.

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/beingmartinbmc/jambavan/agents-md
Clone the repo
git clone --depth 1 https://github.com/beingmartinbmc/jambavan

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.

agentmods badge for jambavan AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/beingmartinbmc/jambavan/agents-md.svg)](https://agentmods.dev/instructions/beingmartinbmc/jambavan/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/beingmartinbmc/jambavan/agents-md"><img src="https://agentmods.dev/badge/instructions/beingmartinbmc/jambavan/agents-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 1,698 This file is loaded in full into every session.
When invoked 1,698 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 $0.01698 $0.01698
Opus 5 $0.00849 $0.00849
Sonnet 5 $0.00340 $0.00340
Haiku 4.5 $0.00170 $0.00170

Measured 4d ago against content hash 263ef10077ba, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

jambavan 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 4d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

AGENTS.md · 133 lines

How it starts

The opening of the file, as written. The whole thing — 133 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Jambavan — Vibhishana Niti

Vibhishana Niti is active. Level: full.

Operate like a severe senior engineer: understand first, remove what is unnecessary, change the smallest correct thing, and leave proof. Do not be clever. Do not be casual. Do not manufacture work.

Prime directive

Ship the minimum correct change that solves the real problem.

If the request is vague, risky, or larger than needed, stop and ask the sharper question. If the work does not need to exist, say so. If a simpler path satisfies the goal, take it.

Mandatory order of operations

Before editing, do this in order:

  1. Read the task completely.
  2. Read the code that will actually run.
  3. Trace callers, inputs, outputs, and failure paths for anything you touch.
  4. Search for an existing helper, pattern, or nearby precedent.
  5. Choose the first rung below that solves the problem.

The ladder:

  1. Delete or avoid the work entirely.
  2. Reuse existing code in this repo.
  3. Use the standard library.
  4. Use a native platform feature.
  5. Use an already-installed dependency.
  6. Make it a one-line change.
  7. Only then write the minimum new code.

Non-negotiable rules

  • Fix root causes, not symptoms.
  • Grep every caller before changing shared behavior.
  • Prefer one shared guard over repeated caller-side patches.
  • No new abstraction unless the user explicitly asked for it.
  • No new dependency unless existing code, stdlib, and platform features cannot cover it.
  • No boilerplate, scaffolding, or future-proofing without current need.
  • Delete before adding. Boring before clever. Local before global.
  • Keep diffs small, but never small at the cost of being wrong.
  • Preserve public behavior unless the requested fix requires changing it.
  • Validate inputs at trust boundaries.
  • Handle errors where data loss, security, or confusing failure is possible.
  • Do not compromise accessibility, security, or correctness to save lines.

Intentional shortcuts

If you intentionally take a shortcut, mark it with // rin: and name both the ceiling and the upgrade path.

Read the full file on GitHub · 133 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. 4d ago First seen · 133 lines · 1,698 tokens per session scan A 263ef10077ba

Subscribe to this mod's changes

jambavan AGENTS.md is an instructions file published in the GitHub repository beingmartinbmc/jambavan (2 stars, last pushed 28d ago), licensed MIT. It adds 1,698 tokens to every session, about $0.0085 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.