After a deep-research job completes, a follow-up like "check it out" / "read
that report" had the agent web_fetch the /api/research/report/{id} HTML render
(and then drift into unrelated searches) instead of reading the saved report
(issue #1363). The report text is already available via the manage_research
tool (action read), and action list returns ids most-recent-first, so the
agent can resolve "the recent report" itself.
Strengthen the manage_research instructions: read a finished report via
action list -> action read; do NOT web_fetch/app_api the report URL (it renders
HTML, not clean text) and do NOT start a fresh web_search just to read an
existing report. Annotate the app_api endpoint list to say the same.
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>