Martin Vogel
c2ee12200c
feat(mcp): load the structural tools upfront and say what the graph answers
...
Claude Code defers every MCP tool behind ToolSearch by default: at session
start the model sees only tool names and server instructions, while Grep and
Read are always loaded. Codex does the same and shows the server instructions
as the namespace description of the deferred tools. Agents therefore reached
for grep before the graph tools were even loaded (#509 , discussion #2025 ).
- tools/list: search_graph, trace_path and get_code_snippet carry
_meta["anthropic/alwaysLoad"] = true (a documented per-tool hint), so the
structural discovery path loads upfront while the other 14 tools stay
deferred. About 4.6K characters of schema; clients that do not know the key
ignore it, as MCP reserves _meta.
- Server instructions (default profile) now state, keywords first and as
facts, which structural questions the graph answers and where grep fits
better: 309 -> 999 characters, within Claude Code's 4,096-character cut.
- SessionStart/SubagentStart: the untrusted-metadata label now covers the
graph-derived project name only. Wrapping the routing sentences too told the
model to treat cbm's own guidance as data. The other sentences are unchanged;
sanitization is unchanged.
The initialize byte budget is raised deliberately from 512 B to 1.5 KiB (1,188
bytes now); tools/list stays within its 21 KiB budget (20,938 bytes).
Refs #509
Signed-off-by: Martin Vogel <martin.vogel.tech@gmail.com >
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