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fix(hermes): chmod 600 config.yaml + pin install URL to commit SHA #39

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fix(hermes): chmod 600 config.yaml + pin install URL to commit SHA #39

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20 changes: 19 additions & 1 deletion setup_hermes.py
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Original file line number Diff line number Diff line change
Expand Up @@ -50,7 +50,16 @@
# httpx, pyyaml, pydantic) cover chat + Databricks model serving. Not on PyPI,
# so we install directly from GitHub. uv tool install handles venv + binary.
# The mcp package is needed for HTTP transport (DeepWiki, Exa MCP servers).
HERMES_PKG = "hermes-agent @ git+https://github.com/NousResearch/hermes-agent.git"
#
# Pinned to a specific commit SHA (≥7 days old at the time of pinning) so a
# force-push to NousResearch/hermes-agent's default branch can't ship code
# into every CoDA container on the next cold start. Bump deliberately on
# CoDA releases; do not auto-update.
HERMES_PIN_SHA = "8e4f3ba4da5337e1ad674a876ac4fb8490f0b79c" # 2026-05-08
HERMES_PKG = (
"hermes-agent @ git+https://github.com/NousResearch/hermes-agent.git"
f"@{HERMES_PIN_SHA}"
)
HERMES_EXTRA_DEPS = ["mcp>=1.2.0"]

# 1. Install Hermes Agent (always, even without token).
Expand Down Expand Up @@ -193,6 +202,15 @@ def _run(cmd, **kwargs):

if should_write:
config_path.write_text("\n".join(lines))
# 0o600 — the file contains the plaintext PAT in `api_key:`. Without an
# explicit chmod the file inherits umask-derived perms (often 0o644 on
# container filesystems), making the token readable by any other process
# under the same UID. Matches setup_opencode.py's auth.json handling.
try:
config_path.chmod(0o600)
except OSError:
# Best effort — chmod can fail on some workspace filesystems.
pass
print(f"Hermes config written: {config_path}")

# 5. Adapt CLAUDE.md -> ~/.hermes/HERMES.md for first-run context
Expand Down