mb-harness

mb-harness is a command for Claude Code, Codex from mrvladd-d/memobank. It costs 29 tokens per session (265 once invoked), scanned A, original, MIT.

A setup helper for making coding-agent work reproducible across clean sessions. It defines the checks and evidence that should be produced for a project.

In plain words
What is it for?
Use it to document linting, type checks, builds, and applicable tests, and optionally configure Codex CLI profiles.
Why use it?
It makes implementation and verification follow the same repeatable gates instead of relying on informal habits.

Command for Claude CodeCodex

Written for Codex and Claude Code: reads ~/.codex or $CODEX_HOME, but also a Claude Code command (commands/*.md). Also seen: mentions Codex.

Good fit Use it to document linting, type checks, builds, and applicable tests, and optionally configure Codex CLI profiles.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/mrvladd-d/memobank/mb-harness
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.

Clone the repo
git clone --depth 1 https://github.com/mrvladd-d/memobank

Made for: Claude Code, Codex.

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 mb-harness

README.md
[![agentmods](https://agentmods.dev/badge/commands/mrvladd-d/memobank/mb-harness.svg)](https://agentmods.dev/commands/mrvladd-d/memobank/mb-harness)
Your own site
<a href="https://agentmods.dev/commands/mrvladd-d/memobank/mb-harness"><img src="https://agentmods.dev/badge/commands/mrvladd-d/memobank/mb-harness.svg" alt="Measured on agentmods" height="20"></a>
Per session 29 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 265 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00029 $0.00265
Opus 5 $0.00015 $0.00133
Sonnet 5 $0.00006 $0.00053
Haiku 4.5 $0.00003 $0.00026

Measured 8d ago against content hash 0b9f245133bb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

mb-harness 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.

skills/_shared/references/commands/mb-harness.md · 31 lines

What it actually says

/mb-harness — Harness setup (Codex/Claude)

1) Принцип

  • Реализация и верификация одной задачи должны быть воспроизводимы.
  • Для критичных задач используй отдельные “чистые” сессии (см. /execute и /autopilot).

2) Gates

Зафиксируй в .memory-bank/testing/index.md:

  • lint/typecheck/build
  • unit/integration/e2e (если применимо)
  • как собирать evidence

3) Codex профиль (опционально)

Если ты используешь Codex CLI и хочешь закрепить модели/режимы — создай/обнови .codex/config.toml. В этом пакете есть пример в skill mb-harness (assets).

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 · 31 lines · 0 tokens per session scan A 0b9f245133bb

Subscribe to this mod's changes

mb-harness is a command published in the GitHub repository mrvladd-d/memobank (55 stars, last pushed 3mo ago), licensed MIT. It adds 29 tokens to every session and 265 once invoked, about $0.0001 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 2026-08-30.