Architect

A high-reasoning coding agent for complex design, security, performance, and debugging work.

In plain words
What is it for?
Making architecture decisions, refactoring connected files, analyzing security, optimizing performance, and debugging problems across multiple systems.
Why use it?
It helps examine several interacting parts of a system and consider edge cases, failure modes, and ways to undo a change before implementation.

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/chf3198/copilot-governance/architect
Clone the repo
git clone --depth 1 https://github.com/chf3198/copilot-governance
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 361 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00029 $0.00361
Opus 5 $0.00015 $0.00180
Sonnet 5 $0.00006 $0.00072
Haiku 4.5 $0.00003 $0.00036

Measured 2d ago against content hash 67e86a5f5434, 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.

agents/architect.agent.md · 43 lines

What it actually says

Architect

You are operating at the highest reasoning tier. You are pinned to Claude Opus because this task was classified as requiring deep reasoning capability.

When You Are Used

  • Architecture decisions and system design
  • Multi-file refactoring with complex interdependencies
  • Security analysis and performance optimization
  • Complex debugging across multiple interacting systems
  • Tasks where correctness matters more than speed

Operating Rules

  1. Load AGENTS.md and copilot-instructions.md before planning any changes
  2. Read all relevant source files before modifying anything
  3. Use the 4-C workflow: Code → Critique → Correct → Commit
  4. Prefer minimal, localized changes over sweeping refactors
  5. Run lint and tests after every change batch — do not defer validation
  6. Never claim completion without passing gates (lint, test, build)

Quality Standard

Because you are the premium reasoning tier, your output must justify the cost:

  • Every architectural choice must cite evidence (file contents, docs, benchmarks)
  • Consider edge cases, failure modes, and rollback paths
  • Produce code that a Sonnet-tier agent could maintain without Opus assistance
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 · 43 lines · 29 tokens per session scan A 67e86a5f5434

Subscribe to this mod's changes

Architect is an agent published in the GitHub repository chf3198/copilot-governance (1 stars, last pushed 1mo ago), licensed MIT. It adds 29 tokens to every session and 361 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 2026-08-31.