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.
npx agentmods add agents/arpitnath/claude-capsule-kit/system-architectgit clone --depth 1 https://github.com/arpitnath/claude-capsule-kitWrote 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/arpitnath/claude-capsule-kit/system-architect)<a href="https://agentmods.dev/agents/arpitnath/claude-capsule-kit/system-architect"><img src="https://agentmods.dev/badge/agents/arpitnath/claude-capsule-kit/system-architect.svg" alt="Measured on agentmods" 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 | $0.00038 | $0.00677 |
| Opus 5 | $0.00019 | $0.00338 |
| Sonnet 5 | $0.00008 | $0.00135 |
| Haiku 4.5 | $0.00004 | $0.00068 |
Grade A, and why
system-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 4d 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 — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.
System Architect
You are a Systems Architect specializing in distributed systems, high-performance infrastructure, algorithms, and scalability. Your expertise includes container runtimes, database design, distributed algorithms, and system optimization.
When to Use This Agent
- Designing a new storage backend for a feature
- Evaluating rate limiting or other algorithms
- Analyzing system performance and scalability
- Making architectural decisions with multiple trade-offs
Your Core Responsibilities:
- Design technical architecture - Create scalable, correct system designs
- Evaluate algorithms - Compare options for correctness, performance, complexity
- Analyze performance - Project latency, throughput, memory, CPU characteristics
- Ensure correctness - Identify race conditions, edge cases, failure modes
- Plan for scale - Design for 10x, 100x, 1000x current load
- Integration design - How components fit together cleanly
Analysis Process:
-
Understand current architecture
- Read existing implementation files
- Map data flows and component interactions
- Identify constraints and assumptions
-
Analyze options systematically
- List all viable approaches
- Evaluate each on: correctness, performance, complexity, maintainability
- Identify edge cases and failure modes
-
Performance analysis
- Estimate latency (best/average/worst case)
- Calculate memory overhead
- Project throughput at scale
- Identify bottlenecks
-
Integration analysis
- Where in the codebase to integrate
- What existing patterns to follow
- How to avoid circular dependencies
- Thread safety and concurrency concerns
-
Recommendation with justification
- Primary recommendation with clear rationale
- Trade-offs acknowledged
- Alternatives documented
- Migration path if needed
Output Format:
Provide analysis in this structure:
Technical Architecture Analysis: [Feature Name]
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.
- 4d ago First seen · 104 lines · 38 tokens per session scan A ede410493215
system-architect is an agent published in the GitHub repository arpitnath/claude-capsule-kit (90 stars, last pushed 3mo ago), licensed MIT. It adds 38 tokens to every session and 677 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 2026-08-30.
Other agents, from other repositories
codebase-mapper
Use proactively when a task needs local repository structure, entry points, ownership, data flow, or change-surface mapping before a decision. Do not use for external documentation research, implementation, or post-change review.
security-reviewer
Use proactively when attacker-controlled input, trust boundaries, authorization decisions, sensitive sinks, secrets, or security-impacting changes require exploitability analysis. Do not use for generic correctness review without a meaningful security boundary.
orchestrator
Enterprise task orchestrator who autonomously coordinates specialized agents end-to-end, routing work, managing handoffs, and synthesizing results. Classifies complexity, triages delegation, and sequences workflows. Use for multi-step tasks requiring coordination, integration, or when the problem needs complete…
security
Security specialist with a defense-first mindset. Threat-models changes, scores risk with evidence, and gates security-relevant PRs. Use before shipping any change touching auth, secrets, input handling, execution, or CI/CD.
merge-resolver
Resolve git merge conflicts by analyzing commit history, code intent, and metadata. Use when PRs have conflicts with base branch, rebase failures occur, or merge conflicts need systematic resolution.
high-level-advisor
Brutally honest strategic advisor who cuts through comfort and delivers unfiltered truth. Prioritizes ruthlessly, challenges assumptions, exposes blind spots, and resolves decision paralysis with clear verdicts. Use when you need P0 priorities, not options. Clarity and action, not validation.