Timmy_Foundation/hermes-agent
15
0
Fork 0
Code Issues 258 Pull Requests 56 Actions Packages Projects Releases Wiki Activity

fix(cache_control) treat empty text like None to avoid anthropic api cache_control error

Browse Source
This commit is contained in:
brandtcormorant
2026-03-13 17:48:27 -07:00
parent 6733a9a538
commit 76efb0153a
2 changed files with 12 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
agent/prompt_caching.py
View File

@@ -21,12 +21,14 @@ def _apply_cache_marker(msg: dict, cache_marker: dict) -> None:
msg["cache_control"] = cache_marker
return
if content is None:
if content is None or content == "":
msg["cache_control"] = cache_marker
return
if isinstance(content, str):
msg["content"] = [{"type": "text", "text": content, "cache_control": cache_marker}]
msg["content"] = [
{"type": "text", "text": content, "cache_control": cache_marker}
]
return
if isinstance(content, list) and content:

8
tests/agent/test_prompt_caching.py
View File

@@ -23,6 +23,14 @@ class TestApplyCacheMarker:
_apply_cache_marker(msg, MARKER)
assert msg["cache_control"] == MARKER
def test_empty_string_content_gets_top_level_marker(self):
"""Empty text blocks cannot have cache_control (Anthropic rejects them)."""
msg = {"role": "assistant", "content": ""}
_apply_cache_marker(msg, MARKER)
assert msg["cache_control"] == MARKER
# Must NOT wrap into [{"type": "text", "text": "", "cache_control": ...}]
assert msg["content"] == ""
def test_string_content_wrapped_in_list(self):
msg = {"role": "user", "content": "Hello"}
_apply_cache_marker(msg, MARKER)