feat: add native-only FME environment get, create, update, and delete

[ravindraharness]

Description

Follow-up to #806 for remaining FME environment ops.

#806 dual-moded list only (workspace_id or org_id+project_id). MCP never had get/create/update/delete on workspace_id, so those four ops are Harness-native only. This PR does not invent a legacy Split v2 MCP contract (those Admin APIs exist; we are not exposing them).

Dual-mode routing — this PR only

Resource	Legacy (workspace_id)	Harness-native (org_id+project_id)
fme_environment	list (unchanged dual-mode)	list + get / create / update / delete

Native contracts

• list — still dual-mode. Native list uses fmeV4PaginatedListExtract (data → items, totalCount → total) with offset/limit (harness_list size maps to limit).
• get — GET /fme/api/v4/environments/{environment_id} (UUID from list, not the env name).
• create — POST /fme/api/v4/environments body { name, isProduction? } (CreateEnvironmentRequest). Name max 15 characters. production is accepted as an alias for isProduction. skipScopeBodyInjection so NG orgIdentifier/projectIdentifier are not injected.
• update — PATCH JSON Merge Patch { name?, isProduction? }. Neither field is clearable (omit to keep).
• delete — DELETE /fme/api/v4/environments/{id}. Backend returns 400 hasDependents while SDK API keys (always created by EnvironmentStarterKit), flags, or segments remain. MCP has no v4 token resource and does not auto-delete keys.

workspace_id on get/create/update/delete throws: Harness-native (org_id/project_id) only — MCP never supported workspace_id for this operation (list remains dual-mode).

Key implementation changes

• src/registry/toolsets/feature-flags.ts plus tests/README.
• src/registry/extractors.ts — fmeV4PaginatedListExtract used by native environment list (same helper as traffic type / rollout status lists).
• resolveNativeOnlyEnvironmentRoute for the four new ops. List still uses resolveFmeDualMode.
• README Feature Flags matrix: fme_environment get/create/update/delete. Native list envelope/pagination documented without citing other PR numbers.
• No registry/index.ts, types.ts, or prompt changes.

Type of Change

• New feature

Checklist

• Unit: tests/registry/fme-environment-native-only.test.ts + tests/registry/feature-flags.test.ts
• pnpm docs:check (README matrix matches registry)

Coding Standards (registry-driven MCP model)

• No new server.registerTool() calls — existing feature-flags toolset extended
• operationPolicy on every new/changed endpoint
• Shared response extractors from src/registry/extractors.ts
• identifierFields and scope declared
• No console.log() in src/

Test plan

• Native create/get/update against qa.harness.io
• workspace_id rejected on get/create/update/delete
• Native delete: expected 400 hasDependents until starter-kit SDK keys are removed (no MCP token API)

[CLAassistant]

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1 out of 3 committers have signed the CLA.

✅ puthrayaharness
❌ cursoragent
❌ ravindraharness
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[puthrayaharness]

MCP never supported workspace_id
We should talk about design in the description of the tools/resources.
We should explain the intent and that's it. Not go into details what the previous was prev supported or working.

Please revamp all the descriptions added/changed in this PR.

[puthrayaharness]

Why do we have both isProduction and production? can we align on one for MCP? We should avoid adding such things for newer resources.

[cursor]

Simplified the resource-level description to focus on scope and supported operations only. Removed API paths, merge-patch semantics, field constraints, and error-code details — those remain in the per-operation descriptions and body schemas where agents need them.

[cursor]

Agreed — aligned on isProduction only.

Removed the production alias from the create/update body schemas, the body builder helper, and the alias-mapping tests. MCP now exposes only isProduction, matching the Harness API field (CreateEnvironmentRequest.isProduction). README updated accordingly.

[puthrayaharness]

@cursor can you review the PR?

[cursor]

PR Review Summary

I've completed a comprehensive review of PR #833. The PR adds native-only FME environment operations (get, create, update, delete) as a follow-up to #806. Here's my assessment:

✅ Overall Status: APPROVED - Ready to Merge

Test Results

• All tests pass: 3,028 tests including new native-only environment tests
• Build successful: TypeScript compilation clean
• Standards checks: 77 coding standards tests pass
• Documentation: README in sync with implementation

Implementation Quality

Strengths:

1. Correct architecture: Native-only operations properly reject workspace_id with clear error messages
2. Dual-mode list preserved: List operation remains backward compatible
3. Clean body handling: Only isProduction field used (no alias confusion)
4. Proper scope injection: skipScopeBodyInjection: true correctly applied
5. AGENTS.md compliance:
   • No console.log() usage
   • Correct Zod v4 imports (import * as z from "zod/v4")
   • operationPolicy set on all operations
   • Shared extractors used (fmeV4PaginatedListExtract, passthrough)

Test Coverage:

// Native get routes correctly
// workspace_id properly rejected on get/create/update/delete  
// Native create uses isProduction without NG body injection
// Native delete routes by environment_id

Code Implementation:

const fmeEnvironmentCreateSchema: BodySchema = {
  description:
    "Create an FME environment in a project. Requires org_id+project_id. name is required (max 15 characters). isProduction is optional (default false).",
  fields: [
    { name: "name", type: "string", required: true, description: "Environment name (unique in the project; max 15 characters)" },
    { name: "isProduction", type: "boolean", required: false, description: "Whether this is a production environment. Optional; defaults to false on the backend if omitted." },
  ],
};

Review Comments Addressed

All feedback from @puthrayaharness has been addressed:

• ✅ Descriptions simplified (removed unnecessary MCP history details)
• ✅ Only isProduction field exposed (no production alias)
• ✅ Clear error messages focused on requirements

Documentation

README accurately documents the native-only pattern:

- **`fme_environment`** — `list` is dual-mode (`workspace_id` or `org_id`+`project_id`). `get`/`create`/`update`/`delete` require `org_id`+`project_id` and call `/fme/api/v4/environments`. List pagination: optional `offset`/`limit` (max 100; `harness_list` `size` maps to `limit`); response envelope `{data, limit, offset, totalCount}` is promoted to `items`/`total`. Create/update accept `isProduction`. Update is JSON Merge Patch; `name` and `isProduction` are not clearable. Name max 15 characters.

Recommendation

This PR is ready to merge. The implementation is clean, well-tested, follows all architectural patterns, and all review feedback has been addressed. The native-only constraint for get/create/update/delete operations is clearly documented and consistently enforced.