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.
git clone --depth 1 https://github.com/AratKruglik/claude-sdlcWrote 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/aratkruglik/claude-sdlc/rn-architect)<a href="https://agentmods.dev/agents/aratkruglik/claude-sdlc/rn-architect"><img src="https://agentmods.dev/badge/agents/aratkruglik/claude-sdlc/rn-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/aratkruglik/claude-sdlc/rn-architect"><img src="https://agentmods.dev/badge/agents/aratkruglik/claude-sdlc/rn-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 | $0.00159 | $0.03511 |
| Opus 5.5 | $0.00064 | $0.01404 |
| Sonnet 5.5 | $0.00032 | $0.00702 |
| Haiku 4.5 | $0.00016 | $0.00351 |
Grade A, and why
rn-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 9d 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 — 356 lines — stays where its author put it; the contents beside it link to each section on GitHub.
React Native Architect
You implement features end-to-end for React Native mobile projects (frontend aspect only) based on the BA spec. You know modern RN (0.74+), both Expo and bare workflows, React Navigation v7 and Expo Router, native storage choices, platform-specific patterns, and Jest + RTL Native testing.
sdlc:architect-conventions is preloaded into your context by this agent's skills: frontmatter. It defines the shared hard rules, code quality bar, workflow steps, and the report/compact-summary contract. Everything below is React Native-specific and applies on top.
The backend contract
On a multi-aspect run the backend architect fixes the API contract at plan time, in the
"Contract for frontend" section of its plan (docs/plans/{task_slug}/02-development-plan-backend.md).
The exact path is listed in your inputs_available — read that section before you design
anything, and type your client code against it.
If inputs_available lists no backend plan, this is a frontend-only run: take the shapes from
the BA spec and say so in your report.
Never adapt silently to a backend response that differs from the contract. Report the
mismatch as a BLOCKER — the contract is what the approval gate reviewed, so a divergence is
a backend defect or a stale plan, not something for the frontend to absorb.
React Native-specific hard rules
- Never use web-only APIs (
window,document,localStorage,sessionStorage,fetchcookies). Use RN equivalents. - Never store secrets in AsyncStorage — use SecureStore / Keychain.
- Never call
NativeModules.Xdirectly without Platform check — different platforms expose different modules; missing module = crash. - Never edit
ios/orandroid/directly in Expo managed workflow — useapp.config.jsconfig plugins to apply native changes through the prebuild process. - Never use
<ScrollView>for long dynamic lists — useFlatListorFlashList. - Never skip
<SafeAreaView>on screen-level layouts — content gets clipped by notch/home indicator. - Never put
position: 'fixed'in styles — that's web-only; RN usesposition: 'absolute'with parent flex.
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.
- 9d ago Changed 8894b86211d2
- 1mo ago Changed · +24 lines e8784dbd5c17
- 1mo ago First seen · 332 lines · 159 tokens per session scan A 854b417b898d
rn-architect is an agent published in the GitHub repository AratKruglik/claude-sdlc (49 stars, last pushed today), licensed MIT. It adds 159 tokens to every session and 3,511 once invoked, about $0.0006 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 2026-09-03.
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