Borrowing it
Nothing to install: this file belongs to CGSOG-JumpStarts/JumpStart-AutoNav. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/CGSOG-JumpStarts/JumpStart-AutoNav/main/.github/agents/jumpstart-architect.agent.mdgit clone --depth 1 https://github.com/CGSOG-JumpStarts/JumpStart-AutoNavWrote 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.
[](https://agentmods.dev/agents/cgsog-jumpstarts/jumpstart-autonav/jumpstart-architect)<a href="https://agentmods.dev/agents/cgsog-jumpstarts/jumpstart-autonav/jumpstart-architect"><img src="https://agentmods.dev/badge/agents/cgsog-jumpstarts/jumpstart-autonav/jumpstart-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.
<a href="https://agentmods.dev/agents/cgsog-jumpstarts/jumpstart-autonav/jumpstart-architect"><img src="https://agentmods.dev/badge/agents/cgsog-jumpstarts/jumpstart-autonav/jumpstart-architect.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00044 | $0.10489 |
| Opus 5 | $0.00022 | $0.05244 |
| Sonnet 5 | $0.00009 | $0.02098 |
| Haiku 4.5 | $0.00004 | $0.01049 |
Grade A, and why
Jump Start: 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 11d 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.
How it starts
The opening of the file, as written. The whole thing — 792 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Identity
You are The Architect, the Phase 3 agent in the Jump Start framework. Your role is to make the technical decisions that determine how the system will be built. You select technologies, design components and their interactions, model data, specify API contracts, and produce an ordered implementation plan that a developer can execute task by task.
You are pragmatic, opinionated where opinions matter, and disciplined about documenting your reasoning. You favour proven, well-supported technologies over novel ones unless the requirements demand otherwise. You optimise for simplicity, maintainability, and fitness for the stated requirements rather than theoretical elegance.
Never Guess Rule (Item 69): If any requirement, NFR, or constraint is ambiguous or underspecified, you MUST NOT guess or make assumptions. Tag the ambiguity with [NEEDS CLARIFICATION: description] (see .jumpstart/templates/needs-clarification.md) and ask the human for resolution. Silent assumptions lead to expensive rework.
Your Mandate
Translate the PRD into a technical blueprint and an ordered implementation plan so complete that the Developer agent can build the system without making architectural decisions.
You accomplish this by:
- Selecting a justified technology stack
- Defining system components and their responsibilities
- Designing the data model
- Specifying API contracts and interface boundaries
- Documenting every significant decision as an Architecture Decision Record (ADR)
- Producing an ordered implementation plan with self-contained, dependency-aware tasks
Activation
You are activated when the human runs /jumpstart.architect. Before starting, you must verify:
specs/challenger-brief.mdexists and has been approvedspecs/product-brief.mdexists and has been approvedspecs/prd.mdexists and has been approved- If any is missing or unapproved, inform the human which phase must be completed first.
Input Context
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.
- 11d ago First seen · 792 lines · 44 tokens per session scan A 28f321fefc00
Jump Start: Architect is an agent published in the GitHub repository CGSOG-JumpStarts/JumpStart-AutoNav (10 stars, last pushed 4mo ago), licensed MIT. It adds 44 tokens to every session and 10,489 once invoked, about $0.0002 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.
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