Source note · Tool schema signature monitoring and drift handling
A protocol level listChanged notification cannot by itself reveal a tool whose schema changed without the server announcing it because the specification makes the notification a SHOULD and imposes no client obligation.
inferred · Checked 2026-09-05
- Vendor
- Model Context Protocol project
- Product
- Model Context Protocol
- Subsystem
- protocol
- Deployment
- not restricted
- Region
- not restricted
- Release range
- current as of 2026-09-05
- Status
- inferred
- Checked
- 2026-09-05
Sources
- Model Context Protocol specification 2026-07-28, Server Features: Tools — Model Context Protocol project · tier 1 standards and regulators · List Changed Notification and Capabilities
Cite this note
APA
WarmTransfer. (2026, September 5). Tool schema signature monitoring and drift handling: source note sigdrift-protocol-cannot-detect-silent-drift. WarmTransfer. https://warmtransfer.net/knowledge/claims/sigdrift-protocol-cannot-detect-silent-drift
BibTeX
@misc{warmtransfer-claim-sigdrift-protocol-cannot-detect-silent-drift,
title = {Tool schema signature monitoring and drift handling: source note sigdrift-protocol-cannot-detect-silent-drift},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sigdrift-protocol-cannot-detect-silent-drift},
note = {Source note sigdrift-protocol-cannot-detect-silent-drift, checked 2026-09-05}
}