I'm trying to choose between a hosted AI agent platform and custom code. We need Slack, Gmail, and Salesforce integrations, plus approval steps before anything is sent. What should I consider?

If you need Slack, Gmail, and Salesforce integrations plus human approval before anything is sent, the main decision is usually not “platform vs code” — it’s how much workflow control, compliance, and integration depth you need.

Key things to consider

1) Approval flow complexity

Ask:

• Can the agent pause before sending anything?
• Can it route approvals to the right person based on content, customer, amount, or confidence?
• Can approvers edit the draft, not just approve/reject?
• Is there a full audit trail of who approved what and when?

If the approval path is simple, many hosted platforms can handle it.
If you need conditional routing, multi-step approvals, or policy-based gating, custom code is often better.

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2) Integration depth

You mentioned:

• Slack: alerts, approvals, maybe interactive buttons
• Gmail: read/send mail, thread management, drafts
• Salesforce: read/write records, create tasks, update opportunities/cases

Questions to ask:

• Does the platform support these natively, or only through generic connectors?
• Can it handle bi-directional sync and stateful workflows?
• Can it safely map data between systems without brittle glue code?
• How easy is it to handle edge cases, like Salesforce permissions or Gmail threading?

Hosted platforms are good if the integrations are standard.
Custom code is better if your business logic depends heavily on CRM objects, email threading, or Slack workflow specifics.

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3) Human-in-the-loop controls

Because approvals are required, look for:

• Draft generation only until approval
• Role-based access controls
• Escalation if approver doesn’t respond
• Approval notifications in Slack/email
• Reusable templates for approved responses
• Ability to prevent accidental sending due to prompt injection or tool misuse

This is often where “agent” products fall short: they can generate content, but not always enforce a strong approval boundary.

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4) Security and permissions

Very important with Gmail and Salesforce:

• Can each connector use least-privilege access?
• Is data encrypted at rest and in transit?
• Can you restrict what the model sees?
• Are logs redactable?
• Can you keep customer data out of model training?
• How are OAuth tokens stored and rotated?

If you handle sensitive customer, sales, or support data, custom code or a platform with strong enterprise controls is usually safer.

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5) Reliability and failure modes

You want to know:

• What happens if Salesforce is down?
• What if Gmail send fails after approval?
• Can actions be retried safely?
• Are workflows idempotent, so you don’t send duplicates?
• Can you resume a partially completed process?

Hosted platforms may hide some of this complexity, but you need to verify their behavior.
Custom code gives you more control, but you own the engineering.

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6) Observability and auditability

You’ll want:

• Step-by-step execution logs
• Prompt/version tracking
• Tool call history
• Approval history
• Outcome metrics
• Easy debugging when something goes wrong

If a platform doesn’t provide this clearly, it becomes hard to trust in production.

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7) Time to value vs long-term flexibility

Hosted platform advantages:

• Faster to prototype
• Less engineering effort
• Built-in connectors and UI
• Easier for non-engineers to manage workflows

Custom code advantages:

• Full control over approvals and business logic
• Easier to enforce security/compliance
• Better for complex Salesforce logic or custom routing
• Less vendor lock-in

A good rule:

• Use a hosted platform if the workflow is mostly standard and speed matters most.
• Use custom code if the workflow is business-critical, approval-heavy, or tightly tied to your internal systems and compliance rules.

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A practical decision framework

Choose a hosted platform if:

• You need something working quickly
• The workflow is relatively standard
• Native Slack/Gmail/Salesforce connectors are sufficient
• You’re okay with some platform constraints

Choose custom code if:

• Approval steps are central and complex
• You need strict control over what gets sent
• You need custom logic across Salesforce records and email threads
• Compliance, auditability, and permissioning are high priority

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Strong recommendation for your case

Since you specifically need Slack + Gmail + Salesforce and approval before sending, I’d lean toward either:

1. A platform that supports human approval gates natively, or
2. Custom orchestration code with the platform only used for LLM calls

That approach gives you:

• deterministic approval handling
• safer tool usage
• easier compliance/audit trails

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Questions to ask vendors

1. How do you implement approval gates?
2. Can I prevent any outbound action until approved?
3. Do you support Slack interactive approvals?
4. Can approvers edit drafts before sending?
5. How do you connect to Gmail and Salesforce?
6. Can I enforce least-privilege access per user/team?
7. What audit logs are available?
8. Can I export workflow history?
9. How do you handle retries and duplicate sends?
10. Is customer data used for training?

If you want, I can also give you a scorecard template for comparing hosted platforms vs custom code for your exact workflow.