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/callstackincubator/rozenite/playground-testinggit clone --depth 1 https://github.com/callstackincubator/rozeniteWhat 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 | $0.00000 | $0.01357 |
| Opus 5 | $0.00000 | $0.00678 |
| Sonnet 5 | $0.00000 | $0.00271 |
| Haiku 4.5 | $0.00000 | $0.00136 |
Grade A, and why
playground-testing 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.
How it starts
The opening of the file, as written. The whole thing — 94 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Playground testing and navigation
- The playground (
apps/playground) is a showcase and E2E testing ground for Rozenite DevTools plugins. Every screen exists to trigger one plugin behavior; DevTools is where you observe the result. - Follow
docs/agents/e2e-testing.mdto reach the app, confirm Rozenite is installed on the simulator, and open React Native DevTools. - DevTools UI is a normal web page — agents can read and interact with it the same way they interact with the app.
Navigate by deep link
Use playground://<path> with agent-device (open_url) or xcrun simctl openurl booted "playground://<path>". Every screen is reachable this way —
see apps/playground/src/app/navigation/routes.ts for the source of truth.
| Route | Deep link | Title |
|---|---|---|
| Home | playground:// |
Rozenite Playground |
| ControlsPlugin | playground://controls |
Controls |
| ReduxTest | playground://redux |
Redux |
| StoragePlugin | playground://storage |
Storage |
| FeatureFlagsPlugin | playground://feature-flags |
Feature Flags |
| FileSystemTest | playground://file-system |
File System |
| NetworkTest | playground://network |
Network Activity |
| RequestBodyTest | playground://network/request-body |
Request Body |
| PerformanceMonitor | playground://performance/monitor |
Performance Monitor |
| RequireProfilerTest | playground://performance/require-profiler |
Require Profiler |
| PerfProblem | playground://performance/perf-problem |
Perf Problem |
| ReactHookFormPlugin | playground://forms |
React Hook Form |
| BottomTabs (Home tab) | playground://navigation |
React Navigation Demo |
| BottomTabs (Profile tab) | playground://navigation/profile |
React Navigation Demo |
| BottomTabs (Settings tab) | playground://navigation/tab-settings |
React Navigation Demo |
| ParameterDisplay | playground://navigation/parameter-display |
Parameter Display |
| SuccessiveScreensStack | playground://navigation/successive |
Successive Screens |
| Settings | playground://settings |
Settings |
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.
- today First seen · 94 lines · 0 tokens per session scan A 38c4acf93cd3
playground-testing is an agent published in the GitHub repository callstackincubator/rozenite (653 stars, last pushed today), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,357 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.
Other agents, from other repositories
debugger
Debugs errors, test failures, and unexpected behavior. Knows PromptScript architecture.
worktree-collaboration
This document defines the default collaboration protocol for multiple Agents working on Vibelution in parallel.
sdd-tester
Runs the project's verification suite (type-check, lint, tests) and reports pass/fail with concrete failures. Use AFTER the implementer finishes a task and BEFORE the verifier. Read-only on source. Stack-agnostic — reads the commands from .memory/30-tech.md.
issue-tracker
Predict issues and PRDs live in Consensys Jira.
domain
This document defines the canonical domain language for Vibelution so architecture work can use stable names for the same concepts. It is intentionally small: add terms when they become load-bearing in design or tests.
sdd-planner
Breaks a feature spec + design into atomic, ordered, testable tasks. Use AFTER spec.md and design.md exist and AFTER the researcher's report. Writes specs/ /tasks.md. Stack-agnostic.