sayan-oai
4e77ea0ec7
## Note-- added plugin mentions via @, but that conflicts with file mentions depends and builds upon #13433. - introduces explicit `@plugin` mentions. this injects the plugin's mcp servers, app names, and skill name format into turn context as a dev message. - we do not yet have UI for these mentions, so we currently parse raw text (as opposed to skills and apps which have UI chips, autocomplete, etc.) this depends on a `plugins/list` app-server endpoint we can feed the UI with, which is upcoming - also annotate mcp and app tool descriptions with the plugin(s) they come from. this gives the model a first class way of understanding what tools come from which plugins, which will help implicit invocation. ### Tests Added and updated tests, unit and integration. Also confirmed locally a raw `@plugin` injects the dev message, and the model knows about its apps, mcps, and skills.
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