chore: update claude-api skill [auto-sync] (#730)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
This commit is contained in:
cc-skill-sync[bot]
2026-03-25 11:10:46 -04:00
committed by GitHub
parent 887114fd09
commit 98669c11ca
13 changed files with 390 additions and 14 deletions
+11 -1
View File
@@ -111,7 +111,7 @@ response = client.messages.create(
## Prompt Caching
Cache large context to reduce costs (up to 90% savings).
Cache large context to reduce costs (up to 90% savings). **Caching is a prefix match** — any byte change anywhere in the prefix invalidates everything after it. For placement patterns, architectural guidance (frozen system prompt, deterministic tool order, where to put volatile content), and the silent-invalidator audit checklist, read `shared/prompt-caching.md`.
### Automatic Caching (Recommended)
@@ -156,6 +156,16 @@ response = client.messages.create(
)
```
### Verifying Cache Hits
```python
print(response.usage.cache_creation_input_tokens) # tokens written to cache (~1.25x cost)
print(response.usage.cache_read_input_tokens) # tokens served from cache (~0.1x cost)
print(response.usage.input_tokens) # uncached tokens (full cost)
```
If `cache_read_input_tokens` is zero across repeated identical-prefix requests, a silent invalidator is at work — `datetime.now()` or a UUID in the system prompt, unsorted `json.dumps()`, or a varying tool set. See `shared/prompt-caching.md` for the full audit table.
---
## Extended Thinking