Publish default for concurrency

[ZachGoldberg]

Summary by CodeRabbit

• Documentation
  • Clarified the default concurrency value (4) in the drift remediation with async module guide.
  • Annotated the input example to note the default and added a table row stating the default is 4.
  • Improves clarity for configuration and reduces confusion; no functional or behavioral changes.

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Project	Deployment	Preview	Comments	Updated (UTC)
docs	Ready	Preview	Comment	Aug 27, 2025 4:27pm

[coderabbitai]

Walkthrough

Documentation update clarifying the default concurrency value (4) for the async module by annotating an example and adding a table row. No code or behavioral changes.

Changes

Cohort / File(s)	Summary
Docs update docs/2.0/docs/accountfactory/guides/drift-remediation-with-async-module.md	Clarifies default concurrency as 4 via an inline comment in an input example and a table entry noting the async module’s default. No functional changes.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related PRs

• guide on using the new control-tower-multi-account-factory-async module #2701 — Also updates the same guide around concurrency, introducing quick-reference details for lambda_worker_max_concurrent_operations; closely related context.

Poem

Four threads march in tidy line,
Docs now whisper “default: 4” in kind.
No code stirred, no tests to chore—
Just clarity’s breeze through pages’ door.
Async hums, the guide less lore.

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[coderabbitai]

Actionable comments posted: 0

🧹 Nitpick comments (3)

docs/2.0/docs/accountfactory/guides/drift-remediation-with-async-module.md (3)

128-131: Clarify example vs. default; consider hardcoding the example to 4.

Using X with a comment can confuse readers. Either set the example explicitly to 4 (the documented default) or annotate “e.g., 4” so it’s clearly illustrative.

Proposed tweak:

 inputs = {
-  lambda_worker_max_concurrent_operations = X # default is 4
+  lambda_worker_max_concurrent_operations = 4 # default
 }

---

128-141: Document valid range and headroom rationale.

Add a brief note that valid values are integers 1–5 (per Service Catalog’s hard limit) and that the default 4 intentionally leaves one slot for other operations.

Suggested addition just below the code block:

+Note: Valid values are integers 1–5. The default of 4 leaves one slot free for other concurrent Service Catalog operations (e.g., new account provisioning).

---

135-141: Tighten phrasing and add rationale for default row.

Minor wording improvement and include why 4 is the default.

-|`4`     | The default set by the async module |
+|`4`     | Default set by the async module (leaves 1 slot for other ops) |

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📥 Commits

Reviewing files that changed from the base of the PR and between e56dc5f and 547f2ee.

📒 Files selected for processing (1)

• docs/2.0/docs/accountfactory/guides/drift-remediation-with-async-module.md (2 hunks)

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🔇 Additional comments (1)

docs/2.0/docs/accountfactory/guides/drift-remediation-with-async-module.md (1)

128-131: The script is running to fetch the variable definition and its default value. I’ll update the review comment once we have the exact default confirmed.