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-types-state-mocks/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-types-state-mocks)<a href="https://agentmods.dev/skills/ledgerhq/ledger-live/ddd-types-state-mocks"><img src="https://agentmods.dev/badge/skills/ledgerhq/ledger-live/ddd-types-state-mocks/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/skills/ledgerhq/ledger-live/ddd-types-state-mocks"><img src="https://agentmods.dev/badge/skills/ledgerhq/ledger-live/ddd-types-state-mocks.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Memory Poisoning · line 48 Skill manipulates agent memory, state, or stored context. Memory corruption can alter personality, override safety rules, or cause unpredictable behavior.Fix: Protect agent memory and state from modification by untrusted content. Use read-only memory for critical instructions and validate all state changes.
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 | $0.00052 | $0.00550 |
| Opus 5 | $0.00026 | $0.00275 |
| Sonnet 5 | $0.00010 | $0.00110 |
| Haiku 4.5 | $0.00005 | $0.00055 |
Grade A, and why
ddd-types-state-mocks 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 — 59 lines — stays where its author put it; the contents beside it link to each section on GitHub.
DDD Types, State, And Mocks
Apply this pattern when one API resource maps to one entity slice. Use ddd-data-layer-advanced when one response hydrates several entities.
Source: Types, Initial State & Mocks
Place Files
domain/entity/<entity>/src/
├── schema.ts
├── schema.mock.ts
├── schema.test.ts
├── selectors.ts
├── selectors.test.ts
├── slice.ts
└── slice.test.ts
domain/api/<entity>/src/
├── api.ts
└── api.test.ts
Export only the contracts consumers need from each package index.ts.
Keep Ownership Clear
| File | Responsibility |
|---|---|
schema.ts |
Define the runtime schema, infer the TypeScript type, and declare a complete initial state |
schema.mock.ts |
Build valid entity data with sensible defaults and optional overrides |
slice.ts |
Own focused entity reducers and actions |
selectors.ts |
Read or derive entity state without importing an app store type |
api.ts |
Own transport contracts, network calls, and transformations |
Follow the package's runtime-schema precedent (Zod or Typia). Do not maintain a separate handwritten type that can drift from the schema.
Validate The Contract
- Give every entity property an explicit initial value.
- Make every mock pass the runtime schema.
- Keep mock-only helpers out of production behavior.
- Give reducers one clear state transition each.
- Parse untrusted API data before storing it when the API layer does not already guarantee the contract.
- Register reducers and API middleware in each app composition root; never import an app store from a domain package.
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 First seen · 59 lines · 52 tokens per session scan A ede34ca52e69
ddd-types-state-mocks is a skill published in the GitHub repository LedgerHQ/ledger-live (617 stars, last pushed yesterday), licensed MIT. It adds 52 tokens to every session and 550 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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