v0.19.4 Release Notes

Released 2026-04-20

v0.19.3 -> v0.19.4

Summary

Token-efficient tool prompts (description and parameter-schema hygiene across 8 built-in tools), explicit tool registration across the registry, and download_page split into separate fetch_page / save_page_to_file handlers.

翻譯

壓縮 8 個內建 tool 的 description 與 parameter schema（省 token），tool registry 改全面顯式註冊，並將原 download_page 拆為 fetch_page 與 save_page_to_file 兩支獨立 handler。

Changes

UPDATE

• Trim tool descriptions and parameter schemas across search_web, fetch_google_rss, fetch_yahoo_finance, analyze_youtube, send_http_request, list_files, glob_files, and run_command — strip filler phrases (Use to ..., Supports ... for user home, (Optional) ...), drop enum/default values already carried in JSON schema, and rely on JSON return-field names (title, url, description) to self-describe output. Reduces token footprint in prompt-cached tool context across multi-provider routing.
• Add explicit cd-prefix prohibition to run_command description and command-param hint so the agent stops prepending cd <workdir> && (previously rejected by sandbox allowlist with ambiguous "cd is not allowed" message).
• Split fetch_page (returns markdown content) and save_page_to_file (writes rendered content to disk) as distinct tools; previously a single download_page handler served both paths.
• Relax invoke_subagent argument defaults so minimal-arg invocations no longer trip [RETRY_REQUIRED] validator bounces.

翻譯

• 壓縮 search_web、fetch_google_rss、fetch_yahoo_finance、analyze_youtube、send_http_request、list_files、glob_files、run_command 的 description 與 parameter schema —— 砍 Use to ...、Supports ... for user home、(Optional) ... 等填充句型，enum／default 交回 JSON schema，並以 JSON 欄位名稱（title、url、description）自述輸出結構。多 provider 路由下可觀降低 prompt cache 內 tool context 的 token 消耗。
• run_command description／command 參數明寫禁止 cd 前綴，避免 agent 持續預綴 cd <workdir> && 被 sandbox allowlist 擋下並誤判錯誤訊息。
• 拆分 fetch_page（回傳 markdown 內容）與 save_page_to_file（寫檔）為兩支獨立 tool；原本由單一 download_page 兼任。
• 放寬 invoke_subagent 參數預設，避免最小引數呼叫被 validator [RETRY_REQUIRED] 彈回。

REFACTOR

• Replace implicit scanner-based tool discovery with explicit Register() calls across calculator, external agents, fetch-page, and file tools in internal/tools/register.go and cmd/app/main.go; tool inventory is now statically traceable from the registry entry points.
• Rename registry entry download_page → save_page_to_file; redistribute implementation across new fetchPage/fetchPage.go, fetchPage/savePageToFile.go, fetchPage/check.go and remove superseded download.go / load.go.
• Relocate subagent registration from internal/agents/subagent/ to internal/tools/subagent/ and adjust blank-import site.

翻譯

• internal/tools/register.go 與 cmd/app/main.go 全面改以顯式 Register() 取代 scanner 自動探測，calculator／external agent／fetch-page／file tool 註冊路徑靜態可追。
• 註冊名 download_page 改為 save_page_to_file；實作重分佈於新檔 fetchPage/fetchPage.go、fetchPage/savePageToFile.go、fetchPage/check.go，移除舊 download.go、load.go。
• subagent 註冊從 internal/agents/subagent/ 搬至 internal/tools/subagent/，調整 blank-import 位置。

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Files Changed

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