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fix: disable phantom tool injection when proxying for opencode

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opencode validates tool calls against its own registry and rejects
unknown tools like memory_query. The opencode plugin provides
mnemosyne_query/mnemosyne_status as registered MCP tools instead.

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
This commit is contained in:
Joey Yakimowich-Payne 2026-03-13 11:43:56 -06:00
commit 6b9b3df64d
1 changed files with 19 additions and 15 deletions
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34
src/mnemosyne/gateway.py
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@ -1610,21 +1610,25 @@ def create_app(
# 4. Build ephemeral outbound view — never mutate the physical store # 4. Build ephemeral outbound view — never mutate the physical store
payload["messages"] = copy.deepcopy(ms.messages) payload["messages"] = copy.deepcopy(ms.messages)
# 4a. Inject phantom tool definitions and resolve pending calls # 4a. Phantom tool injection — DISABLED when proxying for opencode.
from mnemosyne.phantom import inject_tools, inject_phantom_results, extract_phantom_calls # opencode validates tool calls against its own registry and rejects
# unknown tools like memory_query. Phantom tools require SSE stream
observe_only = inject_tools(payload) # interception + auto-continue which the gateway doesn't implement
# Check for pending phantom calls from the previous assistant turn # for the pass-through streaming path. The opencode plugin provides
pending_calls = extract_phantom_calls(payload.get("messages", [])) # mnemosyne_query/mnemosyne_status as registered MCP tools instead.
if pending_calls: #
inject_phantom_results( # from mnemosyne.phantom import inject_tools, inject_phantom_results, extract_phantom_calls
payload["messages"], # observe_only = inject_tools(payload)
pending_calls, # pending_calls = extract_phantom_calls(payload.get("messages", []))
ps, # if pending_calls:
observe_only, # inject_phantom_results(
context_assembler=session.context_assembler, # payload["messages"],
session_id=session.id, # pending_calls,
) # ps,
# observe_only,
# context_assembler=session.context_assembler,
# session_id=session.id,
# )
# 4b. Apply fidelity-based content replacement # 4b. Apply fidelity-based content replacement
_apply_fidelity(payload, session) _apply_fidelity(payload, session)