A new otlpHeadersHelper setting points to an executable that prints a JSON object of collector headers on stdout. Its output is merged over the static otlpHeaders and the new auth-mode header, taking precedence, and is re-run periodically and on rotation for Code and Cowork sessions.
Names in the bundleotlpHeadersHelper
Documented inclaude-docs/cowork/changelog
The entry above is what we published on the day. These lines were added later, as Anthropic's own pages caught up, and they sit beside the original rather than replacing it.
Confirmed since
Anthropic's documentation has since written up otlpHeadersHelper, on Configuration reference.
| <span id="otlpheadershelper" />OpenTelemetry headers helper script<br />`otlpHeadersHelper` | `string` | MDM + Bootstrap<br />Added in 1.30096.1 | — | Absolute path to an executable that prints a JSON object of collector headers. Merged …third-party/claude-desktop/configuration see the edit
One source agreesOne thing we can check says the same as this entry.
Anthropic's documentation agrees
Anthropic's documentation has since written up otlpHeadersHelper, on Configuration reference.