PR by archestra-contributor-pr-bot[bot], ci(contrib): add Jagadeesh58 https://github.com/archestra-ai/archestra/pull/5427

PR by archestra-contributor-pr-bot[bot], ci(contrib): add blessedunit https://github.com/archestra-ai/archestra/pull/5428

PR by archestra-contributor-pr-bot[bot], ci(contrib): add klimnikova https://github.com/archestra-ai/archestra/pull/5429

PR by arsenyinfo, feat(search-tools): BM25F ranking, regex mode, richer output, per-conversation gate https://github.com/archestra-ai/archestra/pull/5430

PR by divineforest, feat(llm): capture and price prompt-cache tokens for accurate cost https://github.com/archestra-ai/archestra/pull/5431

PR by divineforest, feat(chat): use 1h prompt-cache TTL on supported models https://github.com/archestra-ai/archestra/pull/5432

Issue by Khushi281300, bug(drizzle-migration-linter): add-validating-constraint misses constraints without explicit CONSTRAINT keyword https://github.com/archestra-ai/archestra/issues/5433

PR by Konstantinov-Innokentii, feat(skills): auto-enable skill tools on startup when skills flag is on https://github.com/archestra-ai/archestra/pull/5434

PR by arsenyinfo, fix(migration-kit): follow-up to #5357 — harden scripts, flip install ref, telemetry mapping https://github.com/archestra-ai/archestra/pull/5435

PR by arsenyinfo, draft: SkillsBench skill/sandbox eval — offline core + in-process smoke https://github.com/archestra-ai/archestra/pull/5436

PR by arsenyinfo, feat(apps): first-class MCP Apps — backend foundation (C0–C8) https://github.com/archestra-ai/archestra/pull/5437

PR by divineforest, docs(costs): document prompt caching https://github.com/archestra-ai/archestra/pull/5438

PR by joeyorlando, fix: clean up stale network policies https://github.com/archestra-ai/archestra/pull/5439

PR by divineforest, feat(observability): prompt-cache token metrics and span attributes https://github.com/archestra-ai/archestra/pull/5442

PR by arsenyinfo, feat(search-tools): compact per-tool params into a one-line signature https://github.com/archestra-ai/archestra/pull/5443