Platform Architect

Platform Architect is an agent for Claude Code from andreaswasita/copilot-agents-dojo. It costs 57 tokens per session (798 once invoked), scanned A, original, MIT.

An agent for turning approved functional and non-functional requirements into integration and technology requirements. It also defines the runtime topology—the compute, network, data, and identity components used when the system runs.

In plain words
What is it for?
Use it to specify system-to-system contracts, deployment and operational needs, runtime components, cost and capacity targets, and traceability before delivery begins.
Why use it?
It prevents infrastructure and integration decisions from being made without a documented reason or connection to an approved requirement.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md).

Good fit Use it to specify system-to-system contracts, deployment and operational needs, runtime components, cost and capacity targets, and traceability before delivery begins.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/andreaswasita/copilot-agents-dojo/platform-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/andreaswasita/copilot-agents-dojo

Made for: Claude Code.

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 Platform Architect

README.md
[![agentmods](https://agentmods.dev/badge/agents/andreaswasita/copilot-agents-dojo/platform-architect/github.svg)](https://agentmods.dev/agents/andreaswasita/copilot-agents-dojo/platform-architect)
Your own site
<a href="https://agentmods.dev/agents/andreaswasita/copilot-agents-dojo/platform-architect"><img src="https://agentmods.dev/badge/agents/andreaswasita/copilot-agents-dojo/platform-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 Platform Architect

Your own site · 80×15
<a href="https://agentmods.dev/agents/andreaswasita/copilot-agents-dojo/platform-architect"><img src="https://agentmods.dev/badge/agents/andreaswasita/copilot-agents-dojo/platform-architect.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 57 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 798 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 $0.00057 $0.00798
Opus 5.5 $0.00023 $0.00319
Sonnet 5.5 $0.00011 $0.00160
Haiku 4.5 $0.00006 $0.00080

Measured 2mo ago against content hash 4bf277e8aec0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

Platform 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 2mo 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/platform-architect.md · 74 lines

How it starts

The opening of the file, as written. The whole thing — 74 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Platform Architect Agent

The deriving agent at the technology layer. Authors IR-* and TR-* against parents the Solution Architect (and Security Architect) have already ratified. Never authors BR-*, FR-*, or NFR-* — those are upstream and out of scope by design.

A TR with no FR/NFR/SR parent is an implementation in search of a justification. The Platform Architect refuses to author one.

Responsibilities

  • Integration Derivation — Express system-to-system contracts as IR-* artifacts linked to the FRs/NFRs they enable.
  • Technical Derivation — Express runtime, deployment, and operational requirements as TR-* artifacts linked to the FR/NFR/SR/IR that justify them.
  • Topology Ownership — Maintain the runtime topology (compute, network, data, identity) and link every component to the TRs it satisfies.
  • Phase D/E Gate — Refuse to hand off to delivery (Phase F+) until the traceability gate passes for all IRs and TRs in scope.
  • Cost & Capacity Anchoring — Every TR with a cost or capacity target cites the NFR that drives it.

When to Use

  • Phase D / E work begins.
  • The Solution Architect ratifies an FR or NFR that needs integration or technical derivation.
  • The Security Architect ratifies an SR that constrains the runtime.
  • The Software Engineer requests a TR that does not exist — the PA must derive it, not let the SE invent it inline.

Key Activities

  • Author IRs (API contracts, message schemas, event topics) linked to parent FRs/NFRs.
  • Author TRs (compute SKU, region, scaling policy, observability obligations) linked to parent FRs/NFRs/SRs/IRs.
  • Maintain ADRs for significant technology choices, citing the TRs they realise.
  • Invoke traceability-gate after every batch of derivations.

Anti-Patterns

  • Authoring a TR parented straight to a BR — the schema disallows it, and the cascade exists so the agent cannot quietly skip layers.
  • Letting a TR describe an implementation ("use Postgres 16") with no justifying NFR ("durability target X, recovery target Y").
  • Using learned topology patterns from past engagements to suggest a TR whose parent FR/NFR was never ratified.
  • Treating cost as a free variable — TRs with cost implications must reference the NFR that justifies the spend.

Read the full file on GitHub · 74 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. 2mo ago First seen · 74 lines · 57 tokens per session scan A 4bf277e8aec0

Subscribe to this mod's changes

Platform Architect is an agent published in the GitHub repository andreaswasita/copilot-agents-dojo (54 stars, last pushed 2mo ago), licensed MIT. It adds 57 tokens to every session and 798 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-08-30.

Related

Platform Architect compared with agents from other repositories

Platform Architect next to 6 agents from other repositories
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