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caching-internals

Deep implementation details of caching strategies, memory budgets, block eviction, and buffered reading in the Lichtblick preloading subsystem.

60

Quality

68%

Does it follow best practices?

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SecuritybySnyk

Passed

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tessl review fix ./.github/skills/caching-internals/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

75%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A well-structured, token-efficient internals reference with concrete constants, real code, and clear algorithm sequences. The main gaps are illustrative pseudocode where executable code would be feasible and a couple of redundant prose restatements.

Suggestions

Replace the producer-consumer ```text pseudocode with a minimal executable TypeScript snippet (or explicitly justify the pseudocode as illustrative).

Tighten the Backpressure Mechanism bullets, which restate the Producer-Consumer Coordination block, to remove redundancy.

If the skill grows, move the VecQueue internals and Memory Optimization Patterns into a referenced file to keep SKILL.md a lean overview.

DimensionReasoningScore

Conciseness

The body is dense and technical with no padding of concepts Claude already knows; the '⚠️ There is no MCAP_READ_AHEAD_DURATION_SEC = 120' callout earns its tokens by correcting a likely misconception. Not a 5 because a few prose restatements (e.g. the Backpressure Mechanism bullets restate the Producer-Consumer block) could be trimmed.

4 / 5

Actionability

Provides concrete, copy-pasteable TypeScript with real constants (600MB cache, 50MB blocks, 10s read-ahead), a real file path, and an interface definition. Not a 5 because the eviction algorithm and producer-consumer coordination are presented as prose/pseudocode rather than executable code.

4 / 5

Workflow Clarity

The eviction algorithm and block-loading priority are clearly numbered sequences with an explicit conditional branch ('If no blocks behind read position exist, evict oldest block regardless'). Not a 5 because there are no validation/feedback checkpoints, though this documentation skill does not involve destructive or batch operations that would mandate them.

4 / 5

Progressive Disclosure

Self-contained content organized into clearly headed sections (CachingIterableSource, BufferedIterableSource, BlockLoader, Memory Optimization) with no bundle files to navigate. Not a 5 because it is over 50 lines and a couple of sections (e.g. full VecQueue internals) could be split into a reference file if the skill grows.

4 / 5

Total

16

/

20

Passed

Description

62%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

The description names a specific, well-scoped niche and several concrete technical areas, but it omits any explicit 'Use when...' trigger guidance and leans on jargon over natural user phrasing. Adding a usage-trigger clause would raise both completeness and trigger-term quality.

Suggestions

Append a 'Use when ...' clause naming natural triggers (e.g. 'Use when modifying or debugging the Lichtblick preloading/caching pipeline, tuning memory budgets, or investigating cache eviction behavior').

Soften jargon with at least one user-natural synonym (e.g. 'caching/prefetching') so the description matches phrasing a developer would actually say.

Reframe 'Deep implementation details of ...' as active capabilities to lift specificity from a list of topics to a list of actions.

DimensionReasoningScore

Specificity

Lists several concrete aspects — 'caching strategies, memory budgets, block eviction, and buffered reading' — giving specific coverage of the domain rather than vague language. Not a 5 because the actions are framed as 'details of' rather than active verbs enumerating comprehensive capabilities.

4 / 5

Completeness

Has a clear 'what' (deep implementation details of the listed caching concerns) but no 'when' / 'Use when' clause, which caps completeness at 3 per the rubric guidelines.

3 / 5

Trigger Term Quality

Keywords like 'caching', 'block eviction', and 'buffered reading' are relevant but lean technical-jargon-heavy and lack natural user-facing synonyms or a 'Use when' phrase. Not a 4 because common variations users would actually say are missing.

3 / 5

Distinctiveness Conflict Risk

Scoped to 'the Lichtblick preloading subsystem' — a clear niche with distinct triggers and minimal overlap risk with other skills.

5 / 5

Total

15

/

20

Passed

Validation

100%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository
lichtblick-suite/lichtblick
Reviewed

Table of Contents

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