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mcp-config: request /v1/model/info, so a versioned-route grant actually works

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A virtual key's allowed_routes is matched on the exact path: granting
"/v1/model/info" does not also grant "/model/info". MCP_SYNC_GATEWAY has no
/v1 suffix, so this asked for the UNVERSIONED path — meaning a key scoped to
the versioned route still got a 403, still fell back to names-only, and still
produced a config with no context limits, with nothing in the output to say
so. Two correct-looking pieces of config that did not meet.

Tries the versioned path first and falls back to the unversioned one, so it
works whichever way a key happens to be scoped.

With the route granted this now discovers limits live instead of leaning on
the base-config floor. The floor stays: it is what keeps opencode correct if
the key ever loses the route again, and live values override it field by
field. Verified that the two agree — discovery returns exactly the 195584 /
261120 the floor declares — and the Claude models, which the floor does not
cover, picked up 998976 and 198976 for the first time.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FoDK4wwB1Twty5gwiriYLf
This commit is contained in:
noconnor
2026-09-12 00:18:30 -04:00
co-authored by Claude Opus 5
parent 135112eee5
commit 9519cbe609
1 changed files with 13 additions and 2 deletions
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mcp-config/sync.sh
+13 -2
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@@ -212,10 +212,21 @@ _mcp_sync_refresh() {
# context limit, and won't know a model can call tools). /model/info has
# them. Best-effort: a key still scoped to llm_api_routes 403s here, and
# we fall back to names-only, exactly as before.
# VERSIONED PATH FIRST. LiteLLM serves this metadata at both /model/info and
# /v1/model/info, but a virtual key's allowed_routes is matched on the exact
# path — granting "/v1/model/info" does NOT also grant "/model/info". Since
# MCP_SYNC_GATEWAY has no /v1 suffix, the unversioned path is what this used
# to request, so a key scoped to the versioned route still got a 403 and
# still silently fell back to names-only. Try both, versioned first, so it
# works whichever way the key is scoped.
_info=""
if [ -n "${LITELLM_KEY:-}" ]; then
_info="$(curl -fsS -m 8 -H "Authorization: Bearer $LITELLM_KEY" \
"$MCP_SYNC_GATEWAY/model/info" 2>/dev/null)" || _info=""
for _mi_path in /v1/model/info /model/info; do
_info="$(curl -fsS -m 8 -H "Authorization: Bearer $LITELLM_KEY" \
"$MCP_SYNC_GATEWAY$_mi_path" 2>/dev/null)" || _info=""
[ -n "$_info" ] && break
done
unset _mi_path
fi
# 3. Merge and deploy. python3 validates the base (don't clobber good config