effectiveSystemPrompt now gates tool-usage guidelines, the user's
custom system prompt, and active Agent Skills behind whether the
selected model actually supports tools (ModelInfo.capabilities.tools).
All three assume tool/file/web access and can easily blow past small
context windows.
Confirmed live against Apple Intelligence: the default system prompt
dropped from 16,377 to ~250 tokens (well under the 4K on-device
limit), fully resolving the context-exceeded error from the initial
Phase 1 rollout. Verified end-to-end with a real successful generation
in the app after the fix.
Also: .gitignore now excludes *.profraw (stray code-coverage artifact
picked up while testing).
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
runeandClaude Sonnet 5
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