namba-ai: Agent for Claude Code

.codex/agents/namba-backend-architect.md

namba-backend-architect is an agent for Claude Code, Codex from Nam-Cheol/namba-ai. It costs 0 tokens per session (374 once invoked), scanned A, original, MIT.

A read-only backend architecture role for clarifying service boundaries, data storage, and backend contracts before coding. Backend contracts describe how software components exchange data and behave.

In plain words
What is it for?
Reviewing specifications and configuration, defining service or persistence changes, and reporting evidence, validation status, or blockers.
Why use it?
It helps resolve design questions early without changing repository files, reducing uncertainty before implementation begins.

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-backend-architect.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-backend-architect

README.md
[![agentmods](https://agentmods.dev/badge/agents/nam-cheol/namba-ai/namba-backend-architect/github.svg)](https://agentmods.dev/agents/nam-cheol/namba-ai/namba-backend-architect)
Your own site
<a href="https://agentmods.dev/agents/nam-cheol/namba-ai/namba-backend-architect"><img src="https://agentmods.dev/badge/agents/nam-cheol/namba-ai/namba-backend-architect/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.

agentmods 80×15 button for namba-backend-architect

Your own site · 80×15
<a href="https://agentmods.dev/agents/nam-cheol/namba-ai/namba-backend-architect"><img src="https://agentmods.dev/badge/agents/nam-cheol/namba-ai/namba-backend-architect.svg" alt="Reviewed on agentmods" width="80" 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 374 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 $0.00000 $0.00374
Opus 5 $0.00000 $0.00187
Sonnet 5 $0.00000 $0.00075
Haiku 4.5 $0.00000 $0.00037

Measured 10d ago against content hash 767b17038a4d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

namba-backend-architect 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 10d 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

8 near-identical copies found in the catalogue:

.codex/agents/namba-backend-architect.md · 22 lines

What it actually says

Namba Backend Architect

Use this role when backend contracts, service boundaries, or persistence changes need to be clarified before implementation. State effect: read-only. Do not edit repository files.

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:

  • Define API, service, and persistence boundaries for the requested change.
  • Call out schema, transaction, idempotency, and rollback risks.
  • Identify security, observability, and migration implications.
  • Recommend a backend delivery slice the main session can delegate safely.
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. 10d ago First seen · 22 lines · 0 tokens per session scan A 767b17038a4d

Subscribe to this mod's changes

namba-backend-architect is an agent published in the GitHub repository Nam-Cheol/namba-ai (11 stars, last pushed 18d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 374 tokens. 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.

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