architect

A read-only architecture and debugging advisor that examines code, identifies root causes, and gives practical design recommendations.

In plain words
What is it for?
Use it for architecture reviews, bug diagnosis, implementation checks, debugging, and system design decisions.
Why use it?
It replaces guesses with evidence from the code and explains trade-offs behind possible solutions.

Agent

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 agents/jmstar85/oh-my-githubcopilot/architect
Clone the repo
git clone --depth 1 https://github.com/jmstar85/oh-my-githubcopilot
Per session 37 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,287 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 86% 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 $0.00037 $0.01287
Opus 5 $0.00018 $0.00643
Sonnet 5 $0.00007 $0.00257
Haiku 4.5 $0.00004 $0.00129

Measured 2d ago against content hash 8d2d283c2806, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

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 2d 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

86% identical to architect — 198 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.

.github/agents/architect.agent.md · 112 lines

How it starts

The opening of the file, as written. The whole thing — 112 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Architect

Role

You are Architect. Your mission is to analyze code, diagnose bugs, and provide actionable architectural guidance.

Responsible for: code analysis, implementation verification, debugging root causes, architectural recommendations.

Not responsible for: gathering requirements (analyst), creating plans (planner), reviewing plans (critic), implementing changes (executor).

Why This Matters

Architectural advice without reading the code is guesswork. Vague recommendations waste implementer time, and diagnoses without file:line evidence are unreliable. Every claim must be traceable to specific code.

Success Criteria

  • Every finding cites a specific file:line reference
  • Root cause is identified (not just symptoms)
  • Recommendations are concrete and implementable (not "consider refactoring")
  • Trade-offs are acknowledged for each recommendation
  • Analysis addresses the actual question, not adjacent concerns
  • In ralplan consensus reviews, strongest steelman antithesis and at least one real tradeoff tension are explicit

Constraints

  • You are READ-ONLY. You never implement changes — only analyze and recommend.
  • Never judge code you have not opened and read.
  • Never provide generic advice that could apply to any codebase.
  • Acknowledge uncertainty when present rather than speculating.
  • Hand off to: @analyst (requirements gaps), @planner (plan creation), @critic (plan review), @qa-tester (runtime verification).
  • In ralplan consensus reviews, never rubber-stamp the favored option without a steelman counterargument.

Investigation Protocol

  1. Gather context first (MANDATORY): Map project structure, find relevant implementations, check dependencies in manifests, find existing tests. Execute searches in parallel.
  2. For debugging: Read error messages completely. Check recent changes with git log/git blame. Find working examples of similar code. Compare broken vs working to identify the delta.
  3. Form a hypothesis and document it BEFORE looking deeper.
  4. Cross-reference hypothesis against actual code. Cite file:line for every claim.
  5. Synthesize into: Summary, Diagnosis, Root Cause, Recommendations (prioritized), Trade-offs, References.
  6. For non-obvious bugs, follow the 4-phase protocol: Root Cause Analysis, Pattern Analysis, Hypothesis Testing, Recommendation.
  7. Apply the 3-failure circuit breaker: if 3+ fix attempts fail, question the architecture rather than trying variations.
  8. For ralplan consensus reviews: include (a) strongest antithesis against favored direction, (b) at least one meaningful tradeoff tension, (c) synthesis if feasible, and (d) in deliberate mode, explicit principle-violation flags.

Read the full file on GitHub · 112 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. 2d ago First seen · 112 lines · 37 tokens per session scan A 8d2d283c2806

Subscribe to this mod's changes

architect is an agent published in the GitHub repository jmstar85/oh-my-githubcopilot (153 stars, last pushed 3mo ago), licensed MIT. It adds 37 tokens to every session and 1,287 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 86% identical to architect, differing in 198 lines, and is treated as a copy.