p3-architecture

p3-architecture is a command for coding agents from jonase47/ccpr. It costs 0 tokens per session (987 once invoked), scanned A, original, MIT.

Designs the system architecture, selects the tech stack and documents architectural decisions. Each concern is its own sub-skill.

Command

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 commands/jonase47/ccpr/p3-architecture
Clone the repo
git clone --depth 1 https://github.com/jonase47/ccpr

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 p3-architecture

README.md
[![agentmods](https://agentmods.dev/badge/commands/jonase47/ccpr/p3-architecture.svg)](https://agentmods.dev/commands/jonase47/ccpr/p3-architecture)
Your own site
<a href="https://agentmods.dev/commands/jonase47/ccpr/p3-architecture"><img src="https://agentmods.dev/badge/commands/jonase47/ccpr/p3-architecture.svg" alt="Measured on agentmods" height="20"></a>
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 987 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00987
Opus 5 $0.00000 $0.00494
Sonnet 5 $0.00000 $0.00197
Haiku 4.5 $0.00000 $0.00099

Measured today against content hash c3cd3095abb9, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

p3-architecture 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 today.

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.

commands/p3-architecture.md · 67 lines

How it starts

The opening of the file, as written. The whole thing — 67 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/p3-architecture – System Architecture, Tech Stack & ADRs

Designs the system architecture, selects the tech stack and documents architectural decisions. Each concern is its own sub-skill.

Argument: $ARGUMENTS = [Architecture style, e.g. "Monolith", "Microservices", "Single-File"]

If provided: Passed through to the sub-skills. If not provided: Sub-skills make their own recommendations.

Flow

0. Ensure Phase Index Exists

Make sure docs/architecture/ARCHITECTURE.md exists with the standard phase-index header (Status / Last Updated / Key Decisions / Open Risks / Detail Files / Gate Notes — see ~/.claude/docs/PROJECT_PHASES.md). If missing, create it with empty placeholders. The sub-skills below each refresh their own row in the Detail Files table.

Lean-Index Rule: ARCHITECTURE.md is an index, not a detail file. Keep it ≤15 KB. Component descriptions live in COMPONENTS.md (or components/<COMPONENT>.md if Sub-Index applies). Tech-stack rationale lives in TECH_STACK.md. ADRs live under ADR/ (the same spelling gate-p3.md globs and p3-arch-adr.md writes to; case matters on case-sensitive filesystems). NFRs live in NFR.md. The index aggregates one-line decisions and links — nothing else.

1. Component Diagram & Data Flows

/p3-arch-components $ARGUMENTS – Creates the system architecture overview with component diagram and data flows.

2. Tech Stack Decision

/p3-arch-techstack $ARGUMENTS – Selects the tech stack and justifies each decision.

3. Architecture Decision Records

/p3-arch-adr – Documents all significant decisions as ADRs.

4. Non-Functional Requirements

/p3-arch-nfa – Defines measurable NFRs (scalability, performance, availability).

5. Consolidation via Wingman

After all steps are complete: Start the wingman agent with the created result files:

Consolidate the results from: ARCHITECTURE.md, TECH_STACK.md, ADR/, NFR document.

Use the Wingman summary as the basis for presenting results to the user.

Read the full file on GitHub · 67 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. today First seen · 67 lines · 0 tokens per session scan A c3cd3095abb9

Subscribe to this mod's changes

p3-architecture is a command published in the GitHub repository jonase47/ccpr (1 stars, last pushed today), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 987 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 2026-09-03.