dev-guide-cache-hit-rate

dev-guide-cache-hit-rate is an LLM evaluation & observability skill for AI agents, published by Lingtai-AI in the lingtai repository on GitHub. Skillspace rates dev-guide-cache-hit-rate D (68/100) and it passed the safety scan; the rating is based on static analysis only.

Nested lingtai-dev-guide reference for computing the recent prompt-cache hit rate from LingTai token ledgers over rolling windows (default 1h / 5h / 1d / 3d). Explains the provider-agnostic input/cached fields in logs/token_ledger.jsonl, the exact formula (sum(cached)/sum(input) per window), timestamp/timezone handling, the daemon double-count hazard, and ships a read-only stdlib script (scripts/cache_hit_rate.py) that aggregates an agent workdir, a project root, or a single ledger file. Use when asked how effective prompt caching has been recently, or to diagnose a cache-hit-rate drop after a refresh/affinity/cache-key change.

Grade
D
Quality
68 / 100
Safety
Passed
GitHub stars
701

Unproven: rated by static analysis only, not yet compared head-to-head.

This rating describes the version of the repository we crawled; it may have changed since, so go by its current files.

Our review

Architecture
84 / 100
Maturity
Structured: ships references or scripts
Security scan
Low-risk patterns
License
Apache-2.0
Adoption
Adopted by 0 other repositories, in 0 collections

What the scanner flagged

  • mentions secrets in text

Not checked yet

  • Not judged on the rubric yet (not a contender in its category)
  • No blind task eval yet
  • Scope (portable / vendor / repo-internal) not assessed; only the top of each category is read for scope
  • Sibling files (scripts, references) not fetched; security scan covers SKILL.md only

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