Borrowing it
Nothing to install: this file belongs to LedgerHQ/ledger-live. 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/LedgerHQ/ledger-live/develop/.agents/skills/ddd-structure-flow/SKILL.mdgit clone --depth 1 https://github.com/LedgerHQ/ledger-liveWrote 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/skills/ledgerhq/ledger-live/ddd-structure-flow)<a href="https://agentmods.dev/skills/ledgerhq/ledger-live/ddd-structure-flow"><img src="https://agentmods.dev/badge/skills/ledgerhq/ledger-live/ddd-structure-flow.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 5.1 | $0.00069 | $0.01385 |
| Opus 5 | $0.00034 | $0.00692 |
| Sonnet 5 | $0.00014 | $0.00277 |
| Haiku 4.5 | $0.00007 | $0.00138 |
Grade A, and why
ddd-structure-flow 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 7d 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 — 118 lines — stays where its author put it; the contents beside it link to each section on GitHub.
DDD Structure And Flow
Use the lowest layer that can own the concern without depending on a higher layer.
Read the canonical architecture guide and the package creation checklist before creating a package.
Upstream source: Structure & Flow
Choose The Owner
| Concern | Location | Owns | Does not own |
|---|---|---|---|
| Platform entry point | apps/<app> |
Screens, global routing, store composition, analytics, observability, app glue | Reusable feature internals |
| User-visible capability | features/flow/<feature> |
Business-aware UI, user journeys, local state, flow routing | App-specific screen composition |
| Capability shared across flows | features/platform/<feature> |
Hooks, selectors, NFR rules, React glue, and components shared by several flows or use cases | Single-flow internals and fully generic components |
| Business object | domain/entity/<entity> |
Runtime schema, inferred type, defaults, mocks, selectors, slice | Network calls and feature state |
| Network/data access | domain/api/<name> |
API contracts, calls, transformations, RTK Query, thunks | UI and app composition |
| Business-agnostic primitive or component | shared/<name> |
Generic schemas, utilities, Redux primitives, and components without domain or feature knowledge | Domain or app knowledge |
| Development-only tooling | support/<name> |
Shared test, TypeScript, lint, and format configuration | Runtime 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.
- 7d ago First seen · 118 lines · 69 tokens per session scan A 72f825d35322
ddd-structure-flow is a skill published in the GitHub repository LedgerHQ/ledger-live (616 stars, last pushed yesterday), licensed MIT. It adds 69 tokens to every session and 1,385 once invoked, about $0.0003 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.
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