> For the complete documentation index, see [llms.txt](https://docs.aurelia.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.aurelia.io/developer-guides/error-messages/runtime-html/aur0655.md). # AUR0655 ## Error Message `AUR0655: Possible infinitely recursive side-effect detected in a watcher` ## Description A computed watcher re-evaluated more than 100 times without reaching a stable value. A common cause is a watcher callback that assigns a new value to one of its own dependencies on every run. A watched function that mutates observed state can create the same cycle. ## Solution Keep the watched function focused on reading and computing a value. Make callback updates converge to a stable state, or write to state outside the dependency chain being watched. Start with the watcher named in the stack trace. Trace the properties it reads and the properties its callback changes until the cycle becomes visible. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation by asking a question. Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters: ``` GET https://docs.aurelia.io/developer-guides/error-messages/runtime-html/aur0655.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.