Error with tool calling from CodeCompanion

[blankenshipz]

I'm currently using the Anthropic adapter wtih CodeCompanion, anytime I try to use VectorCode it has this output

### Tool Output

**VectorCode Tool**: Failed with error:
"""
�[33mWARNING�[0m: vectorcode.cli_utils : Loading default config.�[0m
�[33mWARNING�[0m: vectorcode.common : Starting bundled ChromaDB server at http://127.0.0.1:58868.�[0m
"""

[Davidyz]

Hi, sorry for replying late. I've been sick over the weekend (and still not fully recovered) so I haven't been able to spend much time on vectorcode.

As for the error you're getting, this could be an unintended consequence of some recent refactoring aiming to avoid the use of hardcoded paths and introducing nix support. I'll get on to it ASAP.

In the meantime, could you provide the following information to help me locate the issue?

1. Does vectorcode query <some_keyword_here> work in the command line?
2. In the codecompanion chat buffer, when you press gd in normal mode, it should open a debug window with raw messages. What's the content of the debug window?

[Davidyz]

I was unable to reproduce this. I think having more information (mentioned above) will help. Please also attach the relevant log if possible.

[blankenshipz]

Sorry for the lack of details and the delay. Here's the relevant portion of the debug buffer:

... 
  }, {
    content = {
      content = "**VectorCode Tool**: Failed with error:\n```\n\27[33mWARNING\27[0m: vectorcode.cli_utils : Loading default config.\27[0m\n\27[33mWARNING\27[0m: vectorcode.common : Starting bundled ChromaDB server at http://127.0.0.1:64594.\27[0m\n```",
      is_error = false,
      tool_use_id = "toolu_01DbpxUu489kjHBNCitiHgJ9",
      type = "tool_result"
    },
    cycle = 2,
    id = 1188797125,
    opts = {
      tag = "tool_output",
      visible = true
    },
    role = "tool"
  } }
 ... 

And here's the error from vectorcode queryon the CLI in the same project

> vectorcode query "redacted query that should have results"
WARNING: vectorcode.cli_utils : Loading default config.
WARNING: vectorcode.common : Starting bundled ChromaDB server at http://127.0.0.1:64671.
Starting querying...
ERROR: vectorcode.main : Traceback (most recent call last):
  File "/Users/me/.local/pipx/venvs/vectorcode/lib/python3.13/site-packages/chromadb/api/base_http_client.py", line 99, in _raise_chroma_error
    resp.raise_for_status()
    ~~~~~~~~~~~~~~~~~~~~~^^
  File "/Users/me/.local/pipx/venvs/vectorcode/lib/python3.13/site-packages/httpx/_models.py", line 829, in raise_for_status
    raise HTTPStatusError(message, request=request, response=self)
httpx.HTTPStatusError: Server error '500 Internal Server Error' for url 'http://127.0.0.1:64671/api/v2/tenants/default_tenant/databases/default_database/collections/a7f0f580-cfb0-40d2-b37f-94a3766cf36c/query'
For more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/500

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/me/.local/pipx/venvs/vectorcode/lib/python3.13/site-packages/vectorcode/main.py", line 91, in async_main
    return_val = await query(final_configs)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/me/.local/pipx/venvs/vectorcode/lib/python3.13/site-packages/vectorcode/subcommands/query/__init__.py", line 189, in query
    structured_result = await build_query_results(collection, configs)
                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/me/.local/pipx/venvs/vectorcode/lib/python3.13/site-packages/vectorcode/subcommands/query/__init__.py", line 88, in build_query_results
    for identifier in await get_query_result_files(collection, configs):
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/me/.local/pipx/venvs/vectorcode/lib/python3.13/site-packages/vectorcode/subcommands/query/__init__.py", line 66, in get_query_result_files
    results = await collection.query(
              ^^^^^^^^^^^^^^^^^^^^^^^
    ...<8 lines>...
    )
    ^
  File "/Users/me/.local/pipx/venvs/vectorcode/lib/python3.13/site-packages/chromadb/api/models/AsyncCollection.py", line 215, in query
    query_results = await self._client._query(
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^
    ...<8 lines>...
    )
    ^
  File "/Users/me/.local/pipx/venvs/vectorcode/lib/python3.13/site-packages/chromadb/telemetry/opentelemetry/__init__.py", line 134, in async_wrapper
    return await f(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/me/.local/pipx/venvs/vectorcode/lib/python3.13/site-packages/chromadb/api/async_fastapi.py", line 585, in _query
    resp_json = await self._make_request(
                ^^^^^^^^^^^^^^^^^^^^^^^^^
    ...<11 lines>...
    )
    ^
  File "/Users/me/.local/pipx/venvs/vectorcode/lib/python3.13/site-packages/chromadb/api/async_fastapi.py", line 132, in _make_request
    BaseHTTPClient._raise_chroma_error(response)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^
  File "/Users/me/.local/pipx/venvs/vectorcode/lib/python3.13/site-packages/chromadb/api/base_http_client.py", line 103, in _raise_chroma_error
    raise Exception(f"{resp.text} (trace ID: {trace_id})")
Exception: {"error":"RuntimeError('Cannot return the results in a contigious 2D array. Probably ef or M is too small')"} (trace ID: 0)

[Davidyz]

See this issue.

TLDR: drop the collection and re-vectorise the files should normally fix it. If it doesn't, try adjusting the hnsw settings. I've had some good results with "hnsw:M": 64.

[blankenshipz]

Okay thanks! I was able to vectorize a different project so I assume this is the issue.

[GregCKrause]

I ran into the same error, and took a few steps to get it working:

1. I had some library code that was being indexed that wasn't needed - added it to my vectorcode.excludes file
2. I was actually able to decrease my hnsw:M value to 32 when increasing my hnsw:*_ef values (more here):

// ~/.config/vectorcode/config.json
{
  "embedding_function": "SentenceTransformerEmbeddingFunction",
  "embedding_params": {},
  "db_path": "<HOME_DIRECTORY>/.local/share/vectorcode/chromadb/",
  "db_log_path": "<HOME_DIRECTORY>/.local/share/vectorcode/",
  "db_settings": null,
  "chunk_size": 2500,
  "overlap_ratio": 0.2,
  "query_multiplier": -1,
  "reranker": "CrossEncoderReranker",
  "reranker_params": {
    "model_name_or_path": "cross-encoder/ms-marco-MiniLM-L-6-v2"
  },
  "hnsw": {
    "hnsw:M": 32,
    "hnsw:construction_ef": 200,
    "hnsw:search_ef": 20,
  },
  "chunk_filters": {},
  "encoding": "utf8"
}