Cleaning Up Slack: A Channel Governance Checklist

Pick one naming convention, department or project prefix plus topic, and apply it going forward before trying to rename every existing channel at once. A convention like team-topic or proj-name-topic makes channels sortable and searchable, which matters more as the workspace grows, since nobody can find a relevant channel among two hundred unstructured names no matter how good the search function is.

Retroactively renaming everything at once tends to cause more confusion than it solves, since people have existing links and habits built around old names. Apply the convention to new channels immediately, and rename old ones opportunistically as you touch them for other reasons.

A channel with no messages in ninety days is very likely dead weight, and waiting for someone to notice and manually archive it means it never happens. Set a policy: channels inactive past a set window get archived automatically, with a notice posted first so anyone still using it quietly can speak up before it disappears.

Archiving isn't deleting. Archived channels stay searchable, so the actual cost of archiving something still useful is low, while the cost of leaving two hundred dead channels cluttering the active list is a workspace nobody can navigate.

External guests and contractors accumulate access over time, and unlike internal channel clutter, stale guest access is a real security exposure, not just a navigation annoyance. Review external access on a fixed schedule, separate from the general channel cleanup, and tie the removal trigger to something concrete: contract end date, project close, or offboarding, rather than relying on someone remembering to revoke it.

A former contractor with lingering guest access to an internal channel isn't a hypothetical risk, it's a live one, since that access usually predates whatever offboarding checklist exists for full-time employees and rarely gets swept up in it automatically.

Someone needs to own workspace hygiene the way someone owns any other recurring process:

• Confirm the naming convention is documented somewhere new hires actually see it.
• Run the inactivity archive check on its set schedule, not ad hoc.
• Audit guest and external access quarterly against current contracts.
• Spot-check for near-duplicate channels covering the same topic and consolidate them.

Without an owner, every item on this list depends on someone noticing the mess and volunteering to fix it, which is exactly how workspaces get messy in the first place. Put this on the same recurring calendar slot as other operational reviews, rather than treating it as a one-off project, and it stops accumulating into a mess big enough to need a dedicated cleanup effort again.

Chat workspace hygiene is a small piece of a larger access governance question that compliance-minded companies already track for other systems. If you're already using a platform like Vanta or Drata to manage access reviews for core systems, folding chat workspace access into that same cadence means one fewer standalone process to maintain and one less thing to forget to review.

Treating chat access as a separate, forgotten category is how it ends up years behind every other system's review discipline, even at companies that are otherwise careful about who can reach what.