* feat: /personality slash command with backend integration
Add /personality command to switch the agent's system prompt personality.
Hermes CLI supports personalities stored at ~/.hermes/personalities/<name>/SOUL.md.
Backend:
- GET /api/personalities: lists available personalities from the active
profile's personalities directory (reads first line of SOUL.md for desc)
- POST /api/personality/set: sets active personality on the session, reads
and validates the SOUL.md file exists, returns the prompt text
- streaming.py: injects personality prompt (SOUL.md content) as prefix to
the system_message when run_conversation is called
Frontend (commands.js):
- /personality with no args: lists available personalities as a local message
- /personality <name>: sets the personality with a toast confirmation
- /personality none|default|clear: removes the active personality
Session model: new 'personality' field (backward-compatible, defaults to None)
Closes#139
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* fix: path traversal in personality name + case sensitivity
Security: personality name is now validated with regex ^[a-zA-Z0-9][a-zA-Z0-9_-]{0,63}$
in both routes.py (POST /api/personality/set) and streaming.py (system
prompt injection). Defense-in-depth: resolve().relative_to() check ensures
the path stays inside the personalities directory even if regex is bypassed.
Also: removed toLowerCase() from frontend command handler so personality
names are case-preserved (filesystem may be case-sensitive).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* feat: /personality command — hardened, compact() fix, tests
Fixes on top of original PR:
- compact() was missing 'personality' field — UI couldn't know active
personality after page load. Added to Session.compact().
- GET /api/personalities: add symlink guard (is_symlink() skip) and
resolve() check — prevents reading SOUL.md from symlink targets
outside personalities dir.
- POST /api/personality/set: require() only checks session_id (not name)
so clearing with name='' works correctly instead of 400.
- POST /api/personality/set: add MAX_FILE_BYTES size cap on SOUL.md to
prevent unbounded context window consumption.
- POST /api/personality/set: return personality:null (not '') when cleared.
- streaming.py: same MAX_FILE_BYTES guard before prepending to system msg.
Added tests/test_sprint28.py: 11 tests for API round-trip, listing,
symlink guard, path traversal rejection, clear, size cap, persistence.
Tests pass in isolation; full-suite run has a test-isolation interaction
with shared server state across sprint tests (tracked as follow-up).
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Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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