Stage 05 of 6 · The Closed Loop
Act — Write back into source systems through governed MCP servers.
Stage 05 of Implement Agentic's six-stage closed loop. Below: process, technologies, ecosystem partners, build-vs-buy guidance, project lifecycle and the benefits clients see.
Process
- Step 01
Expose every write action through an MCP server with explicit scopes and audit logging.
- Step 02
Default to drafts, not sends: open Jira tickets, draft Docs, propose Salesforce updates.
- Step 03
Apply per-action policy: dollar thresholds, approval chains, dry-run modes.
- Step 04
Stream every action into the evaluation layer for after-the-fact review.
Technologies
The 2026 production stack for this stage. Implement Agentic is deliberately model- and vendor-neutral.
Action surfaces
- Salesforce
- Jira / Linear
- Google Docs
- Slack / Teams
- DocuSign
- Notion
Protocols
- Model Context Protocol (MCP)
- Vendor-native APIs
- Webhooks
Policy / guardrails
- OPA / Cedar
- OpenFGA / SpiceDB (ReBAC)
- LLM gateway policies
Ecosystem partners
Anthropic / OpenAI / Google
Native MCP support in foundation model runtimes
Salesforce Agentforce
Vendor-native action layer for CRM
Notion 3.0
First-party MCP partners (Linear, HubSpot, Figma, Lovable, Perplexity)
See the full Ecosystem partners page for our tool catalog.
Build-vs-buy decisions
Buy when…
Buy vendor-native actions when your differentiator is not the integration (Agentforce in CRM, Rovo in Atlassian).
Build when…
Build MCP servers for proprietary internal tools — they become reusable across every future agent.
Implement Agentic's recommendation
Hybrid: vendor-native actions for SaaS, custom MCP servers for proprietary systems, central LLM gateway enforcing policy.
Project lifecycle
| Phase | Timing | Outcome |
|---|---|---|
| Action inventory | Week 1 | Every write action mapped, scoped and risk-rated. |
| MCP build | Weeks 2–4 | MCP servers shipped for top-priority systems. |
| Shadow → assisted → autonomous | Weeks 5–10 | Stepwise rollout with rollback paths. |
| Operate | Ongoing | Action audits, policy updates, MCP server upkeep in AgentOps. |
Benefits
- Reusable MCP servers: write once, every future agent benefits.
- Auditable, reversible actions with explicit human-in-the-loop where required.
- Centralized policy enforcement at the LLM gateway, not scattered through prompts.
Failure modes we prevent
- Autonomous sends of customer-facing artifacts (contracts, emails) without checkpoints.
- MCP servers without scopes or audit logs — unauditable agents.
- Action policies enforced in prompts instead of at the gateway.