claude-api-skill changedagents-and-tools/agent-skills/claude-api-skill
Recorded here
Lines+1added
Lines−1removed
From line
184
where the diff opens
First seen
14 Aug 2026
this site's first read of the page
Recorded edits23to this page, all time
The whole hunk
from line 184, old and new numbered
/
from line 184
1841841. **Scope:** Checks whether your integration is affected, then sends three test requests to confirm that the API reports a deliberate edit.
1851852. **Find:** Captures a few of your own multi-turn sessions, diffs consecutive requests, and lists each place your code edits the prefix.
1861863. **Measure:** Replays the sessions with `"drop_block"` and reports which conversations lose `thinking` blocks, at which turn, and why.
1874. **Fix:** Replaces one edit at a time with the matching pattern in [Make changes without editing the prefix](https://platform.claude.com/docs/en/build-with-claude/preserved-thinking#replace-prefix-edits), and measures again after each change.
1874. **Fix:** Replaces each edit with the matching pattern in [Change tools or instructions without failing the prefix check](https://platform.claude.com/docs/en/build-with-claude/preserved-thinking/change-tools-or-instructions), and measures again after each one.
1881885. **Report:** Summarizes each cause, the change made for it, and the counts before and after.
189189
190190If your project has an eval, the skill also compares scores and token usage with and without dropped `thinking` blocks.
No line in this hunk matches that.