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feat(deploy): deploy with CloudFormation Express mode by default #2713

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tejaskash wants to merge 4 commits into from
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feat(deploy): deploy with CloudFormation Express mode by default #2713

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8118d92
feat(deploy): add --express flag for CloudFormation Express mode
tejaskash Oct 27, 2026
60ab4b6
feat(deploy): always deploy with CloudFormation Express mode
tejaskash Oct 27, 2026
9e0024f
feat(deploy): add --no-express to opt out of CloudFormation Express mode
tejaskash Oct 27, 2026
309c965
fix(deploy): fall back to standard mode for online evals and surface …
tejaskash Oct 27, 2026
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21 changes: 13 additions & 8 deletions docs/commands.md
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Original file line number Diff line number Diff line change
Expand Up @@ -118,18 +118,23 @@ agentcore deploy -y # Auto-confirm
agentcore deploy -y -v # Auto-confirm with verbose output
agentcore deploy --dry-run # Preview without deploying
agentcore deploy --diff # Show CDK diff without deploying
agentcore deploy -y --no-express # Deploy without CloudFormation Express mode
agentcore deploy --target staging -y # Deploy to a specific target
agentcore deploy -y --json # JSON output
```

| Flag | Description |
| ----------------- | --------------------------------------------- |
| `--target <name>` | Deployment target name (default: `"default"`) |
| `-y, --yes` | Auto-confirm prompts |
| `-v, --verbose` | Resource-level deployment events |
| `--dry-run` | Preview deployment without deploying |
| `--diff` | Show CDK diff without deploying |
| `--json` | JSON output |
| Flag | Description |
| ----------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `--target <name>` | Deployment target name (default: `"default"`) |
| `-y, --yes` | Auto-confirm prompts |
| `-v, --verbose` | Resource-level deployment events |
| `--dry-run` | Preview deployment without deploying |
| `--diff` | Show CDK diff without deploying |
| `--no-express` | Deploy without CloudFormation Express mode (Express mode, the default, does not roll back a failed deploy and does not wait for resources to stabilize) |
| `--json` | JSON output |

Projects with online eval configs always deploy without Express mode, because an online eval config needs the agent
runtime log group, which exists only after the runtime finishes starting.

### status

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