[docs] Document ASPIRE_CLI_START_TIMEOUT environment variable

[aspire-repo-bot]

Documents changes from microsoft/aspire#16686

@sebastienros

Targeting release/13.5 — the latest release branch on microsoft/aspire.dev — because release/13.4 (from the source PR milestone 13.4) does not exist there.

Why

microsoft/aspire#16686 adds the ASPIRE_CLI_START_TIMEOUT environment variable so aspire run and aspire start (including detached launches) can wait longer than the default 120-second window for the AppHost to reach a stable running state, with a clear error when the value isn't a valid positive integer. Neither aspire-run.mdx nor aspire-start.mdx previously mentioned this env var.

What changed

• src/frontend/src/content/docs/reference/cli/commands/aspire-run.mdx: added a "Configuring the startup timeout" section describing ASPIRE_CLI_START_TIMEOUT, its default (120s), the invalid-value error behavior, and how it differs from aspire wait --timeout.
• src/frontend/src/content/docs/reference/cli/commands/aspire-start.mdx: added the same "Configuring the startup timeout" section, since the timeout applies to aspire start as well.
• src/frontend/src/content/docs/reference/cli/commands/aspire-wait.mdx: added a clarifying sentence distinguishing the resource-level --timeout option from the AppHost-level ASPIRE_CLI_START_TIMEOUT variable, with a cross-reference link.

No new pages were created; all three existing command reference pages were updated in place.

Generated by PR Documentation Check · auto · 71.8 AIC · ⌖ 6.83 AIC · ⊞ 19.6K · ◷

[Copilot]

Pull request overview

Documents the newly introduced ASPIRE_CLI_START_TIMEOUT environment variable across Aspire CLI command reference pages, clarifying how it affects AppHost startup readiness vs. resource-level waiting in aspire wait.

Changes:

• Added a “Configuring the startup timeout” section to aspire run docs describing ASPIRE_CLI_START_TIMEOUT, its default (120s), and invalid-value behavior.
• Added the same “Configuring the startup timeout” section to aspire start docs.
• Clarified in aspire wait docs that --timeout is resource-scoped and distinct from ASPIRE_CLI_START_TIMEOUT, with a cross-reference link.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
src/frontend/src/content/docs/reference/cli/commands/aspire-run.mdx	Documents ASPIRE_CLI_START_TIMEOUT behavior for aspire run, including detached startup and distinction from aspire wait --timeout.
src/frontend/src/content/docs/reference/cli/commands/aspire-start.mdx	Documents ASPIRE_CLI_START_TIMEOUT behavior for aspire start within the command description section.
src/frontend/src/content/docs/reference/cli/commands/aspire-wait.mdx	Adds clarification that --timeout is resource-level and links to the AppHost startup timeout documentation.

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[aspire-repo-bot]

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