feat(deep-research): add Pro mode 6-phase pipeline and ResearchSpecia…#613
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…list subagent
Adds an opt-in Pro mode to the deep-research agent triggered by user messages
beginning with `深度研究：` or `deep:`. Pro mode runs a 6-phase quality
protocol: query understanding → 4 parallel specialists → citation registry →
adversarial debate (2 rounds) → fact check → manager arbitration → report.
The existing longitudinal/cross-sectional flow stays as the default mode.
Introduces ResearchSpecialist, a new readonly built-in subagent with
WebSearch/WebFetch/Read tools. The previous research flow dispatched to the
Explore subagent, which only carries code-search tools and silently produced
empty findings for web research. ResearchSpecialist returns markdown via the
Task result and the parent agent owns all file writes — required because the
Task tool only treats readonly subagents as concurrency-safe.
Adds bilingual research policy: the parent detects USER_LANG and drives all
prose in USER_LANG, while specialists issue queries in both USER_LANG and
English so source ecosystems on both sides are covered. Quotes stay verbatim
in their source language.
Adds {SESSION_ID} placeholder substitution in prompt_builder so Pro mode can
anchor a per-session WORK_DIR under .bitfun/sessions/{SESSION_ID}/research.
Adds AskUserQuestion to the deep-research agent's default tools for Phase 0
clarification and Phase 5 GAP confirmation.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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…list subagent
Adds an opt-in Pro mode to the deep-research agent triggered by user messages beginning with
深度研究：ordeep:. Pro mode runs a 6-phase quality protocol: query understanding → 4 parallel specialists → citation registry → adversarial debate (2 rounds) → fact check → manager arbitration → report. The existing longitudinal/cross-sectional flow stays as the default mode.Introduces ResearchSpecialist, a new readonly built-in subagent with WebSearch/WebFetch/Read tools. The previous research flow dispatched to the Explore subagent, which only carries code-search tools and silently produced empty findings for web research. ResearchSpecialist returns markdown via the Task result and the parent agent owns all file writes — required because the Task tool only treats readonly subagents as concurrency-safe.
Adds bilingual research policy: the parent detects USER_LANG and drives all prose in USER_LANG, while specialists issue queries in both USER_LANG and English so source ecosystems on both sides are covered. Quotes stay verbatim in their source language.
Adds {SESSION_ID} placeholder substitution in prompt_builder so Pro mode can anchor a per-session WORK_DIR under .bitfun/sessions/{SESSION_ID}/research. Adds AskUserQuestion to the deep-research agent's default tools for Phase 0 clarification and Phase 5 GAP confirmation.