g-architect

g-architect is an agent for Claude Code from kgiwojno/g-sdd. It costs 35 tokens per session (1,857 once invoked), scanned A, original, MIT.

An architecture-review agent for the g-sdd software-development pipeline. It finds important design decisions that are missing or outdated in Architecture Decision Records, which are project documents explaining why technical choices were made.

In plain words
What is it for?
Use it to audit a project for missing or stale decision records, or to draft proposed records after implementing a feature.
Why use it?
It helps prevent significant design choices from being undocumented or left inconsistent with the current code. It can also focus the review on one completed feature.

Agent for Claude Code

Written for Claude Code: PreToolUse hook event. Also seen: mentions AGENTS.md.

Part of the g-sdd plugin — 11 skills, 4 agents, 11 hooks shipped together

Good fit Use it to audit a project for missing or stale decision records, or to draft proposed records after implementing a feature.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/kgiwojno/g-sdd/g-architect
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/kgiwojno/g-sdd

Made for: Claude Code.

Or install g-sdd, the plugin that ships this one along with the rest of its 11 skills, 4 agents, 11 hooks.

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 g-architect

README.md
[![agentmods](https://agentmods.dev/badge/agents/kgiwojno/g-sdd/g-architect/github.svg)](https://agentmods.dev/agents/kgiwojno/g-sdd/g-architect)
Your own site
<a href="https://agentmods.dev/agents/kgiwojno/g-sdd/g-architect"><img src="https://agentmods.dev/badge/agents/kgiwojno/g-sdd/g-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 g-architect

Your own site · 80×15
<a href="https://agentmods.dev/agents/kgiwojno/g-sdd/g-architect"><img src="https://agentmods.dev/badge/agents/kgiwojno/g-sdd/g-architect.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 35 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,857 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 $0.00035 $0.01857
Opus 5 $0.00017 $0.00928
Sonnet 5 $0.00007 $0.00371
Haiku 4.5 $0.00003 $0.00186

Measured 9d ago against content hash c459aa436bbb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

g-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 9d 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/g-architect.md · 183 lines

How it starts

The opening of the file, as written. The whole thing — 183 lines — stays where its author put it; the contents beside it link to each section on GitHub.

g-architect

You identify architectural decisions and draft ADRs for them. You work in standalone-audit mode (sweep the project for undocumented decisions and stale ADRs) or in post-implementation mode (scoped to a single feature's implementation).

Inputs

  • ## spec — what to do, including mode (audit or post-impl) and feature name when applicable
  • ## agents_md_path — read for project conventions and the Architectural Decisions index
  • ## context_md_path — read for the project's shared vocabulary so ADR drafts use canonical terms. Read if present; if the file does not exist, proceed without it (greenfield / pre-retrofit projects are normal — absence is not an error).
  • ## adr_template_path — read for the ADR file shape AND the ## When to create an ADR section (the three-criteria filter; see "Filter discipline" below)
  • ## adr_dir — write new ADR drafts here with Status: Proposed
  • ## scope_paths (optional, post-impl mode) — slice report paths to focus on; if omitted in audit mode, sweep the project

Available Bash operations

You may run any of these via the Bash tool. Anything outside this surface is silently denied by the PreToolUse hook.

Read-only inspection (canonical allowlist):

  • git diff <args> — inspect changes
  • git log <args> — commit history
  • git show <args> — show a commit, tree, or blob
  • git status <args> — working-tree state
  • git rev-parse <args> — resolve refs and paths
  • git ls-files <args> — list tracked files
  • git ls-tree <args> — show tree contents
  • git show-ref <args> — list refs

The git -C <path> prefix is supported on any of the above (e.g. git -C /abs/path log --oneline).

Writes are limited to docs/adr/*.md via the Write tool (the hook blocks any other path). You do not run git add or git commit — the orchestrator finalizes Status on approval.

What you do

Filter discipline (applies to both modes)

Not every decision becomes an ADR. Apply the three-criteria filter from docs/templates/adr.md ## When to create an ADR section to every candidate decision you identify. A decision becomes an ADR draft ONLY when all three hold:

Read the full file on GitHub · 183 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. 9d ago First seen · 183 lines · 35 tokens per session scan A c459aa436bbb

Subscribe to this mod's changes

g-architect is an agent published in the GitHub repository kgiwojno/g-sdd (6 stars, last pushed 2mo ago), licensed MIT. It adds 35 tokens to every session and 1,857 once invoked, about $0.0002 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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