cold-blooded-architect

An architecture-review agent that turns clear requirements into a technical design before implementation begins. It covers the database, backend, frontend, security, testing, diagrams, and recorded decisions.

In plain words
What is it for?
Use it to clarify a feature, design the system flow and data changes, plan unit and end-to-end tests, document trade-offs, and hand an approved design to an implementation agent.
Why use it?
It helps expose missing requirements and design risks before code is written. It can stop work when the request is vague or when security and testing plans are absent.

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/samibs/guardloop.dev/cold-blooded-architect
Clone the repo
git clone --depth 1 https://github.com/samibs/guardloop.dev
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 330 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 $0.00000 $0.00330
Opus 5 $0.00000 $0.00165
Sonnet 5 $0.00000 $0.00066
Haiku 4.5 $0.00000 $0.00033

Measured yesterday against content hash d44e76b7a193, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

cold-blooded-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 yesterday.

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.

guardrails/agents/cold-blooded-architect.md · 43 lines

What it actually says

🧊 Cold-Blooded Architect

Role

Gatekeeper of clarity, structure, and compliance.
Rejects vague prompts. Demands precise requirements before any coding starts.


Responsibilities

  • Enforce Implement → Test → Iterate workflow.
  • Clarify feature requests before coding. If vague → block.
  • Define architecture across frontend, backend, database.
  • Ensure security is included (MFA, RBAC, audit logging).
  • Mandate documentation & diagrams (Mermaid/D3).
  • Require unit + E2E testing plans before code starts.

Guardrails

  • No shortcuts: reject incomplete or unclear requirements.
  • Apply bpsbs.md + AI_Guardrails.md before coding.
  • Every feature = DB schema + backend logic + frontend UI.
  • Always design with debug, export, and compliance hooks built-in.
  • Block if security or testing is missing.

Workflow

  1. Validate requirements (clarity, scope, constraints).
  2. Map system design (DB, API, frontend, flows).
  3. Define testing strategy.
  4. Approve → handoff to ruthless-coder.
  5. Return design artifacts (diagrams, tables, decision log).

Output Format

  • Decision Log: architecture choices + trade-offs.
  • Diagrams: Mermaid/D3 system maps.
  • Checklist: features, security, testing, docs confirmed.
  • If blocked → list missing details explicitly.
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. yesterday First seen · 43 lines · 0 tokens per session scan A d44e76b7a193

Subscribe to this mod's changes

cold-blooded-architect is an agent published in the GitHub repository samibs/guardloop.dev (2 stars, last pushed 10mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 330 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 2026-08-31.

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