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 skills/lukedj78/dev-flow/rn-bootstrapnpx skills add lukedj78/dev-flow --skill rn-bootstrapgit clone --depth 1 https://github.com/lukedj78/dev-flowWhat 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 | $0.00196 | $0.02617 |
| Opus 5 | $0.00098 | $0.01308 |
| Sonnet 5 | $0.00039 | $0.00523 |
| Haiku 4.5 | $0.00020 | $0.00262 |
Grade A, and why
rn-bootstrap 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 2d 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 — 147 lines — stays where its author put it; the contents beside it link to each section on GitHub.
rn-bootstrap — scaffold Expo + RN from PRD/DESIGN
Contract
See references/contracts.md (vendored from dev-flow). Key facts:
- Reads
<project-root>/.workflow/meta.json#stack.framework— must be"expo-rn". - Reads
<project-root>/{PROJECT.md, PRD.md, DESIGN.md}. DESIGN.md is required for tokens; if absent, uses defaults fromreferences/stack-defaults.md. - Writes the app to
<project-root>/(the same directory). - Sets
meta.json#phase = "scaffolded"on success. - Always idempotent: re-running detects existing
package.json+app/and exits 0.
When this skill applies
- Orchestrator routes here from
dev-flowwhenmeta.json#stack.framework == "expo-rn"andmeta.json#phase ∈ {prd_drafted, design_extracted}. - User says: "scaffolda app expo", "create RN app from PRD".
Knowledge dependencies (read these first)
rn-fundamentals/SKILL.md— confirms Expo SDK + New Architecture + TypeScript + npm.rn-styling/references/nativewind-setup.md— the 7-step NativeWind setup (this skill automates it).rn-expo-router/references/concepts.md— folder layout forapp/.references/i18n-rn.md— golden rule 2: every frontend ships i18n from day one. Wire it during this scaffold (device-locale detection,locales/{en,it}.json, provider inapp/_layout.tsx, persisted locale choice) and recordstack.i18n+stack.locales = ["en","it"]inmeta.json. Follow that reference — don't improvise the setup; adding i18n later touches every screen.
Workflow
Step 1 — Verify preconditions
Read <project-root>/.workflow/meta.json. Abort with a clear message if:
- file missing → "Run
dev-flow init_workflow.pyfirst." stack.framework != "expo-rn"→ "This skill is for stack.framework=expo-rn. For Next.js use design-md-to-app."phase ∉ {prd_drafted, design_extracted}→ "Expected phase prd_drafted or design_extracted, got X."
If package.json + app/ already exist at project root: print "Already bootstrapped, nothing to do", set phase to scaffolded if not already, exit 0.
What ships with it
10 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- references/.gitkeep 0 B
- references/contracts.md 37 KB
- references/i18n-rn.md 14 KB
- references/post-bootstrap-checklist.md 2.4 KB
- references/stack-defaults.md 2.9 KB
- scripts/.gitkeep 0 B
- scripts/init-expo-app.sh 3.3 KB runs code
- scripts/install-stack.sh 1.8 KB runs code
- scripts/verify.ts 3.7 KB runs code
- scripts/wire-nativewind.ts 4.5 KB runs code
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.
- 2d ago First seen · 147 lines · 196 tokens per session scan A 90fcc72dbcce
rn-bootstrap is a skill published in the GitHub repository lukedj78/dev-flow (5 stars, last pushed 4d ago), licensed MIT. It adds 196 tokens to every session and 2,617 once invoked, about $0.0010 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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