Post-merge docs sweep for the Aug 16 scout slate. Two pages:
- mcp.md: tool-result sanitization section — invisible Unicode TAG chars
(U+E0000-E007F) stripped from results/resources/descriptions (#80689);
vendor _meta surfaced to the model minus protocol-reserved
modelcontextprotocol/mcp prefixes (#80712)
- tools.md: tool result annotations section — signal-death exit notes
(subprocess -signum definite, shell 128+signum hedged) (#78074); UTF-16
read_file transcoding with disclosure hint and 10MB cap (#80717)
Security-policy docs (approvals/allowlist) intentionally untouched.
bceda18df0