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docs: align model experience with runtime visibility

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Tianyi Cui
2026-07-13 15:00:47 +08:00
parent 8ee569d6bf
commit 7b539a0f8b
24 changed files with 98 additions and 72 deletions
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packages/core/tools/README.md
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@@ -142,7 +142,7 @@ The wire collapse is the registry's own contribution (`systemPrompt.tools()` is
| Context surface | What the model sees | Token effect |
|---|---|---|
| Tool schemas and Code Mode SDK | In normal mode the model sees each visible definition's name, description, and JSON schema. Code Mode instead contributes one reserved `run_code` wire schema and a generated TypeScript `tools` SDK section; `both` exposes both forms. Agent-scoped restrictions and shadows change that agent's end-tool set without filtering the transport. The expert `system-prompt/assemble` waterfall can replace the final assembly and then owns preserving Code Mode protocol coherence. | Fixed per-request cost proportional to the visible definitions. Code Mode trades end-tool schemas for generated SDK text plus one transport schema rather than promising a universal reduction. |
| Tool schemas and Code Mode SDK | In normal mode the model sees each visible definition's name, description, and JSON schema. Code Mode instead contributes one reserved `run_code` wire schema and a generated TypeScript `tools` SDK section; `both` exposes both forms. Agent-scoped restrictions and shadows change that agent's end-tool set and registry-owned SDK without filtering the transport or another plugin's independently registered prompt sections. The expert `system-prompt/assemble` waterfall can replace the final assembly and then owns preserving Code Mode protocol coherence. | Fixed per-request cost proportional to the visible definitions. Code Mode trades end-tool schemas for generated SDK text plus one transport schema rather than promising a universal reduction. |
| Tool-call history and results | The loop retains model-emitted arguments and the registry's final normalized content or structured error. Post-execute listeners may append source-attributed context after the result. Code Mode exposes only the outer program's printed or returned value; inner dispatch events stay log-only. | Arguments, results, and additional context are data-dependent and resent until compaction. Restrictions that hide tools also remove their schemas before the model can call them. |
## Known Limitations and Deferred Work