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.

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.

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implementation across new fetchPage/fetchPage.go, fetchPage/savePageToFile.go, fetchPage/check.go and remove superseded download.go / load.go.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.

Files Changed

Generated by SKILL