{"repo":"NousResearch/hermes-agent","public_id":"119950","display_label":"Reduce redundant I/O on model/provider lookups","summary":"These issues and PRs address performance problems where plugin directory stamps and provider configs were being re-read or re-checked on every model lookup. Fixes involve caching, throttling, and avoiding repeated blocking reads.","subsystem":null,"counts":{"members":4,"open_issues":0,"open_issues_distinct":0,"open_prs":0,"closed_issues":1,"merged_prs":1,"attempt_prs":2},"landed_fix":{"status":"merged_to_main","basis":"structural","pr":120404,"merged_at":"2026-09-23T16:23:49+00:00"},"resolution":{"state":"resolved","by":"pr-120404"},"freshness":{"state":"verified","last_verified_at":"2026-09-23T16:23:49+00:00","is_stale":false},"grouping":{"backbone":"STRUCTURAL_SPANNING","link_density":0.5},"fix_edges":[{"issue_number":119044,"pr_number":120404,"tier":"verified","basis":"closing_ref","confidence":0.95,"recoverable_from_timeline":true,"pr_merged_at":"2026-09-23T16:23:49+00:00"},{"issue_number":119950,"pr_number":120404,"tier":"verified","basis":"closing_ref","confidence":0.95,"recoverable_from_timeline":true,"pr_merged_at":"2026-09-23T16:23:49+00:00"}],"members":[{"kind":"issue","number":119950,"title":"[Perf]: Model picker re-stats provider plugin dirs on every model lookup (_home_layer stamping is O(lookups))","url":null,"state":"closed"},{"kind":"pr","number":119951,"title":"fix: cache provider plugin directory stamps","url":null,"state":"closed","close_reason":{"refs":[{"kind":"pr","value":"#120404","number":120404}],"category":"merged_via","implication":"superseded"},"merged":false},{"kind":"pr","number":119958,"title":"fix(providers): throttle the plugin-dir stamp check to once per home per TTL","url":null,"state":"closed","close_reason":{"refs":[{"kind":"pr","value":"#119951","number":119951}],"category":"duplicate_of","implication":"duplicate"},"merged":false},{"kind":"pr","number":120404,"title":"perf(picker): stop re-reading config per model and blocking on expired catalogs","url":null,"state":"merged","close_reason":{"category":"merged"},"merged":true,"is_fix_pr":true,"fix_tier":"verified","files_changed":["agent/models_dev.py","hermes_cli/inventory.py","hermes_cli/model_switch_providers.py","hermes_cli/models.py","providers/__init__.py","tests/hermes_cli/test_inventory.py","tests/hermes_cli/test_inventory_pricing.py","tests/hermes_cli/test_model_cache_parallel_prefetch.py","tests/providers/test_provider_registry.py"]}],"trust":{"default_tier":"verified","includes_suggested":false}}