perf(tools): cache Nous auth + .env loads, drop hermes tools All Platforms from 14s to <1.5s#25341
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…`hermes tools` menus `hermes tools` -> "All Platforms" took ~14s to render the checklist because building the toolset labels called `get_nous_auth_status()` ~31x transitively (`_toolset_has_keys` -> `_visible_providers` -> `get_nous_subscription_features` -> `managed_nous_tools_enabled`). Each call did a synchronous OAuth refresh POST to portal.nousresearch.com (~350ms even on the failure path), so one menu paint burned >13s of HTTP and 31 single-use Nous refresh tokens. Secondary hot spot: every `get_env_value()` re-read and re-sanitised the entire .env file. 116 reads with O(lines x known-keys) scanning added ~300ms of CPU per render. Fix is two process-level caches, both mtime-keyed so login/logout/edit invalidate naturally: * `hermes_cli/auth.py`: memoise `get_nous_auth_status()` for 15s keyed on auth.json mtime. Splits `_compute_nous_auth_status()` as the uncached impl. Adds `invalidate_nous_auth_status_cache()`. * `hermes_cli/config.py`: memoise `load_env()` keyed on .env (path, mtime, size). Adds `invalidate_env_cache()`, wired into `save_env_value`, `remove_env_value`, and the sanitize-on-load writer so writers don't return stale dicts on same-second writes. Before/after on Teknium's box (real HERMES_HOME, no Nous login): * "All Platforms" cold path: ~13,874ms -> ~691ms label-build * Warm re-open within the same process: ~122ms -> ~17ms Side benefit: stops burning a Nous refresh token on every menu paint, which was risking the portal's reuse-detection revocation logic.
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🔎 Lint report:
|
| Rule | Count |
|---|---|
invalid-argument-type |
3 |
First entries
run_agent.py:13616: [invalid-argument-type] invalid-argument-type: Argument to function `len` is incorrect: Expected `Sized`, found `(str & ~AlwaysFalsy) | (dict[Unknown | str, Unknown | str | dict[str, str]] & ~AlwaysFalsy) | (Any & ~AlwaysFalsy) | ... omitted 3 union elements`
run_agent.py:7402: [invalid-argument-type] invalid-argument-type: Argument to function `build_anthropic_client` is incorrect: Expected `str`, found `str | dict[Unknown | str, Unknown | str | dict[str, str]] | Any | ... omitted 3 union elements`
run_agent.py:13613: [invalid-argument-type] invalid-argument-type: Argument to function `_is_oauth_token` is incorrect: Expected `str`, found `str | dict[Unknown | str, Unknown | str | dict[str, str]] | Any | ... omitted 3 union elements`
✅ Fixed issues (3):
| Rule | Count |
|---|---|
invalid-argument-type |
3 |
First entries
run_agent.py:13616: [invalid-argument-type] invalid-argument-type: Argument to function `len` is incorrect: Expected `Sized`, found `(str & ~AlwaysFalsy) | (dict[Unknown, Unknown] & ~AlwaysFalsy) | (Any & ~AlwaysFalsy) | ... omitted 3 union elements`
run_agent.py:7402: [invalid-argument-type] invalid-argument-type: Argument to function `build_anthropic_client` is incorrect: Expected `str`, found `str | dict[Unknown, Unknown] | Any | ... omitted 3 union elements`
run_agent.py:13613: [invalid-argument-type] invalid-argument-type: Argument to function `_is_oauth_token` is incorrect: Expected `str`, found `str | dict[Unknown, Unknown] | Any | ... omitted 3 union elements`
Unchanged: 4373 pre-existing issues carried over.
Diagnostics are surfaced as warnings — this check never fails the build.
jsboige
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May 14, 2026
…`hermes tools` menus (NousResearch#25341) `hermes tools` -> "All Platforms" took ~14s to render the checklist because building the toolset labels called `get_nous_auth_status()` ~31x transitively (`_toolset_has_keys` -> `_visible_providers` -> `get_nous_subscription_features` -> `managed_nous_tools_enabled`). Each call did a synchronous OAuth refresh POST to portal.nousresearch.com (~350ms even on the failure path), so one menu paint burned >13s of HTTP and 31 single-use Nous refresh tokens. Secondary hot spot: every `get_env_value()` re-read and re-sanitised the entire .env file. 116 reads with O(lines x known-keys) scanning added ~300ms of CPU per render. Fix is two process-level caches, both mtime-keyed so login/logout/edit invalidate naturally: * `hermes_cli/auth.py`: memoise `get_nous_auth_status()` for 15s keyed on auth.json mtime. Splits `_compute_nous_auth_status()` as the uncached impl. Adds `invalidate_nous_auth_status_cache()`. * `hermes_cli/config.py`: memoise `load_env()` keyed on .env (path, mtime, size). Adds `invalidate_env_cache()`, wired into `save_env_value`, `remove_env_value`, and the sanitize-on-load writer so writers don't return stale dicts on same-second writes. Before/after on Teknium's box (real HERMES_HOME, no Nous login): * "All Platforms" cold path: ~13,874ms -> ~691ms label-build * Warm re-open within the same process: ~122ms -> ~17ms Side benefit: stops burning a Nous refresh token on every menu paint, which was risking the portal's reuse-detection revocation logic.
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AlexFoxD
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May 21, 2026
…`hermes tools` menus (NousResearch#25341) `hermes tools` -> "All Platforms" took ~14s to render the checklist because building the toolset labels called `get_nous_auth_status()` ~31x transitively (`_toolset_has_keys` -> `_visible_providers` -> `get_nous_subscription_features` -> `managed_nous_tools_enabled`). Each call did a synchronous OAuth refresh POST to portal.nousresearch.com (~350ms even on the failure path), so one menu paint burned >13s of HTTP and 31 single-use Nous refresh tokens. Secondary hot spot: every `get_env_value()` re-read and re-sanitised the entire .env file. 116 reads with O(lines x known-keys) scanning added ~300ms of CPU per render. Fix is two process-level caches, both mtime-keyed so login/logout/edit invalidate naturally: * `hermes_cli/auth.py`: memoise `get_nous_auth_status()` for 15s keyed on auth.json mtime. Splits `_compute_nous_auth_status()` as the uncached impl. Adds `invalidate_nous_auth_status_cache()`. * `hermes_cli/config.py`: memoise `load_env()` keyed on .env (path, mtime, size). Adds `invalidate_env_cache()`, wired into `save_env_value`, `remove_env_value`, and the sanitize-on-load writer so writers don't return stale dicts on same-second writes. Before/after on Teknium's box (real HERMES_HOME, no Nous login): * "All Platforms" cold path: ~13,874ms -> ~691ms label-build * Warm re-open within the same process: ~122ms -> ~17ms Side benefit: stops burning a Nous refresh token on every menu paint, which was risking the portal's reuse-detection revocation logic.
gweeteve
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Jun 2, 2026
…`hermes tools` menus (NousResearch#25341) `hermes tools` -> "All Platforms" took ~14s to render the checklist because building the toolset labels called `get_nous_auth_status()` ~31x transitively (`_toolset_has_keys` -> `_visible_providers` -> `get_nous_subscription_features` -> `managed_nous_tools_enabled`). Each call did a synchronous OAuth refresh POST to portal.nousresearch.com (~350ms even on the failure path), so one menu paint burned >13s of HTTP and 31 single-use Nous refresh tokens. Secondary hot spot: every `get_env_value()` re-read and re-sanitised the entire .env file. 116 reads with O(lines x known-keys) scanning added ~300ms of CPU per render. Fix is two process-level caches, both mtime-keyed so login/logout/edit invalidate naturally: * `hermes_cli/auth.py`: memoise `get_nous_auth_status()` for 15s keyed on auth.json mtime. Splits `_compute_nous_auth_status()` as the uncached impl. Adds `invalidate_nous_auth_status_cache()`. * `hermes_cli/config.py`: memoise `load_env()` keyed on .env (path, mtime, size). Adds `invalidate_env_cache()`, wired into `save_env_value`, `remove_env_value`, and the sanitize-on-load writer so writers don't return stale dicts on same-second writes. Before/after on Teknium's box (real HERMES_HOME, no Nous login): * "All Platforms" cold path: ~13,874ms -> ~691ms label-build * Warm re-open within the same process: ~122ms -> ~17ms Side benefit: stops burning a Nous refresh token on every menu paint, which was risking the portal's reuse-detection revocation logic.
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Summary
hermes tools→ "All Platforms" took ~14s to render the toolset checklist. Caches the two hot dependencies so it now renders in ~1.25s cold / ~17ms warm. Also stops burning a single-use Nous refresh token on every menu paint.Root cause
Building the toolset labels called
get_nous_auth_status()~31× transitively (_toolset_has_keys→_visible_providers→get_nous_subscription_features→managed_nous_tools_enabled). Each call did an OAuth refresh POST to portal.nousresearch.com (~350ms even on the failure path) → ~13s of HTTP and 31 burned refresh tokens per menu paint.Secondary: every
get_env_value()re-read and re-sanitised the entire .env file (116 calls × O(lines × known-keys) scanning) → another ~300ms of pure CPU.Changes
hermes_cli/auth.py: memoiseget_nous_auth_status()for 15s keyed onauth.jsonmtime. Splits_compute_nous_auth_status()as the uncached impl. Addsinvalidate_nous_auth_status_cache().hermes_cli/config.py: memoiseload_env()keyed on.env (path, mtime, size). Addsinvalidate_env_cache(), wired intosave_env_value,remove_env_value, and the sanitize-on-load writer.Both caches invalidate naturally on login/logout/edit via mtime, and writers explicitly bust the cache for coarse-mtime filesystems.
Validation
On teknium's real
HERMES_HOME(not logged into Nous, so every call hit the failure path):New tests pass:
tests/hermes_cli/test_env_load_cache.py(6),tests/hermes_cli/test_nous_auth_status_cache.py(4).