A brew Python upgrade (original report) or an interrupted venv rebuild
(v0.19.0 report in the same thread) can leave certifi importable while
its bundled cacert.pem is missing or a dangling symlink. Every TLS
connection then fails — Feishu/Telegram/WeChat/DingTalk all down —
with an opaque 'Could not find a suitable TLS CA certificate bundle'
from deep inside httpx/requests.
The existing repair infrastructure only probed
`hasattr(certifi, 'contents')`, which PASSES in exactly this failure
state, so neither the early venv self-heal nor `hermes update`'s
import-probe repair ever classified certifi as broken. Extended, not
replaced:
- hermes_cli/_early_recovery.py: the in-process probe now also
validates that certifi.where() exists and is a plausible bundle
(>=1KiB), so the pre-import self-heal repairs it like any other
wiped core package.
- hermes_cli/main.py (_detect_broken_lazy_refresh_imports): the
subprocess probe script used by `hermes update`'s venv repair
applies the same bundle-file check inside the target venv.
- hermes_cli/doctor.py: `hermes doctor` already failed the cert
check; `hermes doctor --fix` now repairs it (pip force-reinstall
certifi + module-cache invalidation + re-verify), covering
brew/manual venvs where no update marker exists. Failures funnel
into the manual-action list with the exact command.
- agent/ssl_guard.py: the startup SSLConfigurationError hint now leads
with `hermes doctor --fix` instead of only the raw pip command.
Fixes#29866
A stale certifi CA bundle after a partial `hermes update` used to crash
the agent on the first outbound HTTPS call with a raw traceback and
trap the gateway in a retry loop.
This patch:
* Adds `agent/errors.py` with a typed `SSLConfigurationError`
* Adds `agent/ssl_guard.py` with a `verify_ca_bundle()` pre-flight
that asserts the bundle exists, is non-trivial in size, and can build
a working SSLContext. On macOS, it falls back to the system trust
store when the bundle is empty but the system store is healthy
(covers corporate proxies / MDM setups).
* Wires the guard into `run_agent.py` and `gateway/run.py` right
after the `hermes_bootstrap` import, inside a try/except so a bug
in the guard itself can never prevent startup.
* Adds a `SSL / CA Certificates` section to `hermes_cli doctor` so
users can detect the failure with one command.
* Adds unit tests covering the healthy, missing, empty, skip-env, and
macOS-fallback paths.
* Adds an RCA document describing the failure mode and the recovery
path (`pip install -e .`).
When the bundle is broken the user sees:
\u26a0\ufe0f SSL certificate bundle issue detected.
Run: pip install -e .
`HERMES_SKIP_SSL_GUARD=1` disables the check for sandboxed
environments that ship their own trust store.
