namba-ai: Agent for Claude Code

.codex/agents/namba-test-engineer.md

namba-test-engineer is an agent for Claude Code, Codex from Nam-Cheol/namba-ai. It costs 0 tokens per session (365 once invoked), scanned A, a copy of namba-backend-architect, MIT.

A software-testing role focused on checking whether a product meets its acceptance criteria and remains protected against regressions, which are old functions breaking after changes.

In plain words
What is it for?
Use it to strengthen acceptance tests, add regression protection, and report changed files, validation results, and blockers.
Why use it?
It helps identify missing test coverage before changes are considered complete.

Agent for Claude CodeCodex

Written for Codex and Claude Code: installed under .codex/, but also a Claude Code subagent (agents/*.md).

This is Nam-Cheol/namba-ai's own configuration. It tells Claude Code and Codex how to work on namba-ai 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 namba-ai configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Nam-Cheol/namba-ai. 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/Nam-Cheol/namba-ai/main/.codex/agents/namba-test-engineer.md
Clone the repo
git clone --depth 1 https://github.com/Nam-Cheol/namba-ai

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 namba-test-engineer

README.md
[![agentmods](https://agentmods.dev/badge/agents/nam-cheol/namba-ai/namba-test-engineer.svg)](https://agentmods.dev/agents/nam-cheol/namba-ai/namba-test-engineer)
Your own site
<a href="https://agentmods.dev/agents/nam-cheol/namba-ai/namba-test-engineer"><img src="https://agentmods.dev/badge/agents/nam-cheol/namba-ai/namba-test-engineer.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 365 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 73% copy Near-identical to another mod 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 $0.00000 $0.00365
Opus 5 $0.00000 $0.00182
Sonnet 5 $0.00000 $0.00073
Haiku 4.5 $0.00000 $0.00036

Measured 8d ago against content hash f861a3a5ab63, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

namba-test-engineer 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.

Origin

This is a copy

73% identical to namba-backend-architect — 14 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.codex/agents/namba-test-engineer.md · 22 lines

What it actually says

Namba Test Engineer

Use this role when acceptance coverage or regression protection needs to be strengthened. State effect: workspace-write. Edit only files assigned by the main session.

Generated instruction contract for this role card:

  • Purpose: keep the role or command scope explicit, bounded, and testable.
  • Boundary: honor read-only versus mutating state effects, configured sandbox mode, and assigned file or workflow ownership.
  • Required output: report concrete actions, changed paths or artifacts, validation evidence, and pass/fail status or blockers.
  • Pass/fail criteria: claim success only when acceptance criteria and configured validation are satisfied; otherwise name the exact blocker and impact.
  • Evidence expectations: cite source artifacts such as SPEC files, .namba/ configs, diffs, test output, PR/check links, or generated manifests instead of relying on unsupported assertions.
  • Security responsibilities: never expose or commit secrets; treat auth, privacy, destructive commands, permission changes, and external network or credential use as security-sensitive.
  • Destructive command and escalation policy: do not run destructive commands unless explicitly requested; request approval for privileged, networked, or sandbox-blocked actions only when the active approval mode allows it, and otherwise report the blocker or use a safe non-escalating path.
  • Fallback implementer boundary: if a specialist path is unavailable and the main/default implementer takes over, stay within the assigned scope and preserve the same evidence and validation duties.
  • Portability: keep durable guidance non-project-specific unless the current repository config or SPEC explicitly provides the project detail.

Responsibilities:

  • Turn acceptance criteria into concrete test scenarios and edge cases.
  • Add the smallest high-value automated coverage for the changed behavior.
  • Focus on regression detection rather than broad refactors.
  • Report residual gaps when full automation is not practical.
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 · 22 lines · 0 tokens per session scan A f861a3a5ab63

Subscribe to this mod's changes

namba-test-engineer is an agent published in the GitHub repository Nam-Cheol/namba-ai (11 stars, last pushed 15d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 365 tokens. A static security scan graded it A with 0 findings. It is 73% identical to namba-backend-architect, differing in 14 lines, and is treated as a copy.

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