Build vs buy
The First Allowlist Is Easy.
The Tenth Is A Product.
Most teams start by hard-coding which tools an agent may call. It works for the first agent. By the third, every team has its own rules, its own approval hack and no shared audit trail.
Side by side
What you would build, and what you get.
| Need | Typical in-house first version | AgentPlane |
|---|---|---|
| Allowlist of tools per agent | A config file per agent | Registry with scoped tools, owners and revocable keys |
| Deciding what needs a person | If-statements in each agent | One deterministic policy engine with priority and conflict rules |
| Explaining a decision | Log lines, if someone added them | Reason codes, policy versions and every risk factor stored with the decision |
| Approvals | A Slack message saying the agent wants to continue | The exact payload, bound to its hash, with expiry and no self-approval |
| Stopping an agent | Redeploy, or revoke a shared credential | Disable one agent, or every agent, instantly and audited |
| Proving what happened | Application logs that can be edited | Append-only, hash-chained audit trail with export |
| Changing rules safely | Ship and hope | Version history, diffs, rollback and backtests on real traffic |
| Trying it without risk | A staging environment that drifts | Shadow mode on live traffic, with the hard floor still enforced |
| Multiple teams and roles | Usually skipped | Workspaces, six roles and invites |
Honestly
When building it yourself is the right call.
- You have one agent, one tool, and the only risky action can be blocked with a single condition.
- Your agents never touch customer data, money, external messages or production systems.
- You have a platform team that will own authorization, audit and approvals as a product, indefinitely.
- If none of those fit, the cost is not the first version. It is keeping approvals, audit and policy changes consistent across every team that ships an agent after you.
Keep your agents. Replace the glue.
AgentPlane does not host or build agents. It sits in front of the tools they already call.