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GCP To AWS

ClineOfficialPublished by Cline

  • Skill
  • Workflow
  • Cloud and DevOps
  • Apache-2.0
  • Low risk

From the author

Migrate workloads from Google Cloud Platform to AWS — including AI and agentic workloads regardless of cloud provider. Triggers on: migrate from GCP, GCP to AWS, move off Google Cloud, migrate Terraform to AWS, migrate Cloud SQL to RDS, migrate GKE to EKS, migrate Cloud Run to Fargate, Google Cloud migration, migrate from OpenAI to Bedrock, move off OpenAI, switch from ChatGPT API to AWS, migrate from Gemini to Bedrock, migrate LangChain to Bedrock, migrate LangGraph to AWS, migrate agentic workloads to AWS, move AI workloads to AWS, migrate my AI app to AWS. Runs a 6-phase process: discover GCP resources from Terraform files, app code, or billing exports, clarify migration requirements, design AWS architecture, estimate costs, generate migration artifacts, and collect optional feedback. Clarify must finish before Design, Estimate, or Generate. Includes AI provider migration guidance (for example, OpenAI to Amazon Bedrock) by selecting closest-fit Bedrock model families for required modality, latency/quality
— the description by Cline

AutoGineer summary

Written by AutoGineer from the skill’s own files, not by the author

The gcp-to-aws skill provides a deterministic, multi-phase process to migrate Google Cloud Platform (GCP) workloads to AWS. It supports infrastructure migration via Terraform analysis and AI workload migration by mapping models to Amazon Bedrock. The skill enforces a strict state machine, requiring discovery, clarification, design, estimation, and generation phases to ensure a reliable migration path. It includes specific logic for handling hybrid stacks, AI provider transitions, and complex infrastructure clustering.

What it does

  • Discovers GCP resources from Terraform, application code, or billing data.
  • Clarifies migration requirements through a structured questionnaire.
  • Designs AWS architecture based on GCP workload types and AI model requirements.
  • Estimates costs for the proposed AWS infrastructure and AI services.
  • Generates migration artifacts including Terraform configurations and AI provider adapters.
  • Provides specialized guidance for migrating AI workloads from Gemini or OpenAI to Amazon Bedrock.

When to use it

  • When you need to migrate existing GCP infrastructure to AWS.
  • When you are looking to move AI-driven applications from GCP or OpenAI to Amazon Bedrock.
  • When you have Terraform files or billing exports and need a structured migration plan.
  • When you require a step-by-step, validated approach to re-platforming cloud services.

Advantages

  • Enforces a rigorous, fail-closed state machine to prevent skipped steps.
  • Provides intelligent mapping of GCP services to AWS equivalents.
  • Includes specific logic for AI workload migration and model compatibility.
  • Supports multi-signal discovery using IaC, code, and billing data.
  • Ensures consistent artifact generation through a structured 6-phase process.

Usage examples

“Migrate my GKE and Cloud SQL setup to AWS.”
The agent initiates the discovery phase, analyzing your Terraform files to identify GKE and Cloud SQL resources, then guides you through the clarification and design phases for EKS and RDS.
“I need to move my LangChain app from OpenAI to Bedrock.”
The agent identifies the AI workload, selects the best-fit Bedrock model family, and generates the necessary provider adapters and migration documentation.

Install

  1. Download the skill as a ZIP:

    https://autogineer.com/agent-skills/cline/gcp-to-aws/download
  2. Unzip it into the cross-client skills folder of your project:

    mkdir -p .agents/skills && unzip gcp-to-aws.zip -d .agents/skills

Documentation by Cline

GCP-to-AWS Migration Skill

Philosophy

  • Re-platform by default: Select AWS services that match GCP workload types (e.g., Cloud Run → Fargate, Cloud SQL → RDS).

  • Dev sizing unless specified: Default to development-tier capacity (e.g., db.t4g.micro, single AZ). Upgrade only on user direction.

  • No human one-time migration costs: Do not present human labor, professional services, or people-time work as dollar estimates or "one-time migration cost" budget categories. Vendor charges grounded in data (for example GCP data transfer egress in the infra estimate when billing exists) are allowed.

  • Multi-signal approach: Design phase adapts based on available inputs — Terraform IaC for infrastructure, billing data for service mapping, and app code for AI workload detection.

  • BigQuery / google_bigquery_*: The skill does not recommend a specific AWS analytics or warehouse service. During Clarify, if discovery shows BigQuery (IaC google_bigquery_* and/or billing rows for BigQuery), you must surface the specialist advisory before Design (see references/phases/clarify/clarify.md). Design output uses Deferred — specialist engagement; keep directing the user to their AWS account team and/or a data analytics migration partner through Design, Estimate, and docs (see references/phases/design/design-infra.md BigQuery specialist gate).


Definitions

  • "Load" = Read the file using the Read tool and follow its instructions. Do not summarize or skip sections.

  • $MIGRATION_DIR = The run-specific directory under .migration/ (e.g., .migration/0226-1430/). Set during Phase 1 (Discover).


Context Loading Rules

Each phase loads reference files on demand. To keep per-turn context manageable and prevent instruction-following degradation:

  • Budget: Each phase should load no more than ~800 lines of instructions (excluding user artifacts like JSON profiles and MCP tool results).

  • Conditional loading: Reference files with trigger conditions (e.g., agentic_profile.is_agentic == true) MUST NOT be loaded unless the condition is met. Do not speculatively load files.

  • No duplication: Model mapping tables, pricing data, and shared warnings exist in one canonical file. Other files reference them; they do not copy them inline.

  • Progressive depth: Phase orchestrators (design.md, generate.md) contain short routing logic that points to detailed sub-files. Load the sub-file only when its path is selected.

Conditional reference files (load ONLY when condition is true):

FileCondition
design-refs/ai-gemini-to-bedrock.mdai-workload-profile.json exists AND summary.ai_source = "gemini" or "both"
design-refs/ai-openai-to-bedrock.mdai-workload-profile.json exists AND summary.ai_source = "openai" or "both"
design-refs/ai-anthropic-to-bedrock.mdai-workload-profile.json exists AND summary.ai_source = "anthropic"
design-refs/ai.mdai-workload-profile.json exists AND summary.ai_source = "other"
design-refs/design-ref-harness.mdagentic_profile.is_agentic == true AND ai_constraints.agentic.migration_approach == "harness"
design-refs/design-ref-agentic-to-agentcore.mdagentic_profile.is_agentic == true AND ai_constraints.agentic.migration_approach == "strands"
shared/retarget-gotchas.mdagentic_profile.is_agentic == true AND ai_constraints.agentic.migration_approach == "retarget"

When adding new reference files, verify the phase's total loaded instructions remain under budget. If a new file would exceed ~800 lines when combined with other loaded refs, split it or make it conditional.

Hybrid stack budget warning:

When both gcp-resource-inventory.json AND ai-workload-profile.json exist, the combined design refs will approach the ~800-line budget. Output this warning to the user before loading the AI design refs:

"⚠️ This is a large hybrid stack (infrastructure + AI workloads). To ensure complete and accurate recommendations, consider running the migration in two separate passes:

Pass 1 — Infrastructure: Run with only your Terraform files to get infra mapping, Terraform generation, and cost estimates.

Pass 2 — AI workloads: Run with only your application code to get Bedrock model recommendations, provider adapters, and AI migration artifacts.

Continue with the combined run? (Y/N)"

If the user chooses to continue, proceed with the combined run. Load AI refs after infra refs to preserve infra instruction fidelity. If the user declines, stop and instruct them to re-run with a single input source type.

This warning is advisory only — it does not block the run.


Prerequisites

User must provide at least one GCP source:

  • Terraform IaC: .tf files (with optional .tfvars, .tfstate)

  • Application code: Source files with GCP SDK or AI framework imports

  • Billing data: GCP billing/cost/usage export files (CSV or JSON)

If none of the above are found, stop and ask user to provide at least one source type.


State Machine

This is the execution controller. After completing each phase, consult this table to determine the next action.

Current StateConditionNext Action
discoverphases.discover != "completed"Load references/phases/discover/discover.md
clarifyphases.discover == "completed" AND phases.clarify != "completed"Load references/phases/clarify/clarify.md
designphases.clarify == "completed" AND phases.design != "completed"Load references/phases/design/design.md
estimatephases.design == "completed" AND phases.estimate != "completed"Load references/phases/estimate/estimate.md
generatephases.estimate == "completed" AND phases.generate != "completed"Load references/phases/generate/generate.md
completephases.generate == "completed" AND phases.feedback == "pending"Set phases.feedback to "completed" (user had two chances), then migration complete
completephases.generate == "completed" AND phases.feedback == "completed"Migration planning complete

How to determine current state (deterministic):

  1. Read $MIGRATION_DIR/.phase-status.json

  2. If current_phase exists, use it (must match one of: discover, clarify, design, estimate, generate, complete)

  3. Otherwise use ordered phase evaluation: discover → clarify → design → estimate → generate

  4. Pick the first phase in that order where phases.<phase> != "completed"; if none, state is complete

Phase gate checks: If prior phase incomplete, do not advance (e.g., cannot enter estimate without completed design).

Clarify is mandatory: Do not load references/phases/design/design.md, references/phases/estimate/estimate.md, or references/phases/generate/generate.md unless $MIGRATION_DIR/.phase-status.json exists and phases.clarify is exactly "completed". A preferences.json file alone is not sufficient proof that Clarify ran. If the user asks to skip Clarify or jump straight to Design, cost estimate, or artifact generation, refuse briefly, then load references/phases/clarify/clarify.md and run Phase 2. There is no exception for "quick" or "obvious" migrations.

Feedback checkpoints: Feedback is not a sequential phase — it is offered at two interleaved checkpoints (after Discover and after Estimate). See the Feedback Checkpoints section below for details.

Handoff Gate Orchestration (Fail Closed)

Load references/shared/handoff-gates.md when executing any phase completion step.

  1. Single $MIGRATION_DIR: Use one run directory for the entire migration. Do not mix artifacts across .migration/*/ sessions.

  2. Re-read from disk: Before each phase (and before each handoff gate), Read required artifacts from $MIGRATION_DIR/. Do not rely on chat memory.

  3. Advance only on HANDOFF_OK: A phase is complete only when its orchestrator emits HANDOFF_OK | phase=<name> | artifacts=.... Do not load the next phase without it.

  4. On GATE_FAIL: Output the failure line(s) to the user in plain language. Do NOT modify artifacts to pass the gate. Do NOT continue to the next phase. Tell the user which phase to re-run.

  5. Re-entry: Re-running an earlier phase after downstream phases completed requires explicit user confirmation; downstream phases must be reset to "pending". See handoff-gates.md re-entry table.

Generate phase additionally loads references/shared/validate-artifacts.md before writing migration-report.html.


State Validation

When reading $MIGRATION_DIR/.phase-status.json, validate before proceeding:

  1. Multiple sessions: If multiple directories exist under .migration/, list them with their phase status and ask: [A] Resume latest, [B] Start fresh, [C] Cancel.

  2. Invalid JSON: If .phase-status.json fails to parse, STOP. Output: "State file corrupted (invalid JSON). Delete the file and restart the current phase."

  3. Unrecognized phase: If phases object contains a phase not in {discover, clarify, design, estimate, generate, feedback}, STOP. Output: "Unrecognized phase: [value]. Valid phases: discover, clarify, design, estimate, generate, feedback."

  4. Unrecognized status: If any phases.* value is not in {pending, in_progress, completed}, STOP. Output: "Unrecognized status: [value]. Valid values: pending, in_progress, completed."

  5. Invalid current_phase (if present): If current_phase is not in {discover, clarify, design, estimate, generate, complete}, STOP. Output: "Unrecognized current_phase: [value]. Valid values: discover, clarify, design, estimate, generate, complete."

  6. Out-of-order completion: For ordered phases [discover, clarify, design, estimate, generate], if any later phase is "completed" while an earlier phase is not "completed", STOP. Output: "Inconsistent phase ordering detected. Reconcile .phase-status.json before resuming."

  7. Multiple active phases: Across core phases {discover, clarify, design, estimate, generate}, at most one phase may be "in_progress". If >1, STOP. Output: "Multiple phases are in_progress. Keep only one active phase before resuming."


State Management

Migration state lives in $MIGRATION_DIR (.migration/[MMDD-HHMM]/), created by Phase 1 and persisted across invocations.

.phase-status.json schema:

{
  "migration_id": "0226-1430",
  "last_updated": "2026-02-26T15:35:22Z",
  "current_phase": "design",
  "phases": {
    "discover": "completed",
    "clarify": "completed",
    "design": "in_progress",
    "estimate": "pending",
    "generate": "pending",
    "feedback": "pending"
  }
}

Status values: "pending" → "in_progress" → "completed". Never goes backward. For core phases (discover, clarify, design, estimate, generate), at most one phase may be "in_progress" at any time. current_phase is optional but recommended; when present it is authoritative.

The .migration/ directory is automatically protected by a .gitignore file created in Phase 1.

Phase Status Update Protocol

Use read-merge-write updates for .phase-status.json:

  1. Read the current file before every update.

  2. Change only the phase keys being advanced and last_updated.

  3. Keep prior completed phases unchanged.

  4. Set current_phase to the next deterministic phase (or complete after generate).

  5. Write the full file in the same turn as your final phase work message.

Example — after completing the Clarify phase, write $MIGRATION_DIR/.phase-status.json with:

{
  "migration_id": "MMDD-HHMM",
  "last_updated": "2026-02-26T15:35:22Z",
  "current_phase": "design",
  "phases": {
    "discover": "completed",
    "clarify": "completed",
    "design": "pending",
    "estimate": "pending",
    "generate": "pending",
    "feedback": "pending"
  }
}

Replace MMDD-HHMM with the actual migration ID, generate the last_updated ISO 8601 UTC timestamp yourself, and set each phase to its correct status at that point.


Phase Summary Table

PhaseInputsOutputsReference
Discover.tf files, app source code, and/or billing exports (at least one required)gcp-resource-inventory.json, gcp-resource-clusters.json, ai-workload-profile.json, billing-profile.json, .phase-status.json updated (outputs vary by input)references/phases/discover/discover.md
ClarifyDiscovery artifacts (gcp-resource-inventory.json, gcp-resource-clusters.json, ai-workload-profile.json, billing-profile.json — whichever exist)preferences.json, .phase-status.json updatedreferences/phases/clarify/clarify.md
Designpreferences.json + discovery artifactsaws-design.json (infra), aws-design-ai.json (AI), aws-design-billing.json (billing-only)references/phases/design/design.md
Estimateaws-design.json or aws-design-billing.json or aws-design-ai.json, preferences.jsonestimation-infra.json or estimation-ai.json or estimation-billing.json, .phase-status.json updatedreferences/phases/estimate/estimate.md
Generateestimation-infra.json or estimation-ai.json or estimation-billing.json, aws-design.json or aws-design-billing.json or aws-design-ai.json, preferences.jsongeneration-infra.json or generation-ai.json or generation-billing.json + terraform/, scripts/, ai-migration/, validation-report.json (when infra route active), MIGRATION_GUIDE.md, README.md, .phase-status.json updatedreferences/phases/generate/generate.md
Feedback.phase-status.json (discover completed minimum), all existing migration artifactsfeedback.json, trace.json, .phase-status.json updatedreferences/phases/feedback/feedback.md

MCP Servers

awspricing (for cost estimation):

  • Provides get_pricing, get_pricing_service_codes, get_pricing_service_attributes tools

  • Only needed during Estimate phase. Discover and Design do not require it.

  • Primary pricing source: references/shared/pricing-cache.md (cached 2026 rates, ±5-10% for infrastructure, ±15-25% for AI models). MCP is secondary — used only for services not found in the cache.


Files in This Skill

gcp-to-aws/
├── SKILL.md                                    ← You are here (orchestrator + state machine)
│
├── references/
│   ├── phases/
│   │   ├── discover/
│   │   │   ├── discover.md                     # Phase 1: Discover orchestrator
│   │   │   ├── discover-iac.md                 # Terraform/IaC discovery
│   │   │   ├── discover-app-code.md            # App code discovery
│   │   │   └── discover-billing.md             # Billing data discovery
│   │   ├── clarify/
│   │   │   ├── clarify.md                     # Phase 2: Clarify orchestrator
│   │   │   ├── clarify-global.md              # Category A: Global/Strategic (Q1-Q7)
│   │   │   ├── clarify-compute.md             # Categories B+C: Config Gaps + Compute (Q8-Q11)
│   │   │   ├── clarify-database.md            # Category D: Database (Q12–Q13b)
│   │   │   ├── clarify-ai.md                  # Category F: AI/Bedrock (Q14-Q22)
│   │   │   └── clarify-ai-only.md             # Standalone AI-only migration flow
│   │   ├── design/
│   │   │   ├── design.md                       # Phase 3: Design orchestrator
│   │   │   ├── design-infra.md                 # Infrastructure design (IaC-based)
│   │   │   ├── design-ai.md                    # AI workload design (Bedrock)
│   │   │   └── design-billing.md               # Billing-only design (fallback)
│   │   ├── estimate/
│   │   │   ├── estimate.md                     # Phase 4: Estimate orchestrator
│   │   │   ├── estimate-infra.md               # Infrastructure cost analysis
│   │   │   ├── estimate-ai.md                  # AI workload cost analysis
│   │   │   └── estimate-billing.md             # Billing-only cost analysis
│   │   ├── generate/
│   │   │   ├── generate.md                     # Phase 5: Generate orchestrator
│   │   │   ├── generate-infra.md               # Infrastructure migration plan
│   │   │   ├── generate-ai.md                  # AI migration plan
│   │   │   ├── generate-billing.md             # Billing-only migration plan
│   │   │   ├── generate-artifacts-infra.md     # Terraform configurations
│   │   │   ├── generate-artifacts-scripts.md  # Migration scripts
│   │   │   ├── generate-artifacts-ai.md        # Provider adapter + test harness
│   │   │   ├── generate-artifacts-billing.md   # Skeleton Terraform
│   │   │   └── generate-artifacts-docs.md      # MIGRATION_GUIDE.md + README.md
│   │   └── feedback/
│   │       ├── feedback.md                     # Phase 6: Feedback orchestrator
│   │       └── feedback-trace.md               # Anonymized trace builder
│   │
│   ├── design-refs/
│   │   ├── index.md                            # Lookup table: GCP type → design-ref file
│   │   ├── fast-path.md                        # Deterministic 1:1 mappings (Pass 1)
│   │   ├── compute.md                          # Compute mappings (Cloud Run, GCE, GKE, etc.)
│   │   ├── database.md                         # Database mappings (Cloud SQL, Spanner, etc.)
│   │   ├── storage.md                          # Storage mappings (GCS, Filestore, etc.)
│   │   ├── networking.md                       # Networking mappings (VPC, LB, DNS, etc.)
│   │   ├── messaging.md                        # Messaging mappings (Pub/Sub, etc.)
│   │   └── ai.md                               # AI mappings (Vertex AI → Bedrock)
│   │
│   ├── clustering/terraform/
│   │   ├── classification-rules.md             # Primary/secondary classification
│   │   ├── clustering-algorithm.md             # Cluster formation rules
│   │   ├── depth-calculation.md                # Topological depth calculation
│   │   └── typed-edges-strategy.md             # Edge type assignment
│   │
│   └── shared/
│       ├── schema-phase-status.md              # .phase-status.json schema (canonical reference)
│       ├── schema-discover-iac.md              # gcp-resource-inventory + clusters schemas (loaded by discover-iac.md)
│       ├── schema-discover-ai.md               # ai-workload-profile schema (loaded by discover-app-code.md and discover-iac.md Step 7d)
│       ├── schema-discover-billing.md          # billing-profile schema (loaded by discover-billing.md)
│       ├── schema-estimate-infra.md            # estimation-infra.json schema (loaded by estimate-infra.md at write time)
│       ├── handoff-gates.md                    # Fail-closed phase handoff protocol (GATE_FAIL / HANDOFF_OK)
│       ├── validate-artifacts.md               # Pre-report validation (Generate Step 0; read-only)
│       ├── migration-complexity.md             # Complexity tier definitions (small/medium/large) for timeline scaling
│       ├── pricing-cache.md                    # Cached AWS + source provider pricing (±5-25%, primary source)
│       └── bedrock-quotas.md                   # Bedrock TPM/RPM quota awareness, burndown rates, capacity planning
ConditionAction
No GCP sources found (no .tf, no app code, no billing data)Stop. Output: "No GCP sources detected. Provide at least one source type (Terraform files, application code, or billing exports) and try again."
.phase-status.json missing phase gateStop. Output: "Cannot enter Phase X: Phase Y-1 not completed. Start from Phase Y or resume Phase Y-1."
awspricing unavailable after 3 attemptsDisplay user warning about ±5-25% accuracy. Use pricing-cache.md. Add pricing_source: "cached_fallback" to the applicable estimation-*.json file.
User skips questions or says "use defaults for the rest"Apply documented defaults for remaining questions in the current batch and all subsequent batches. Phase 2 completes either way.
aws-design.json missing required clustersStop Phase 4. Output: "Re-run Phase 3 to generate missing cluster designs."

Defaults

  • IaC output: Terraform configurations, migration scripts, AI migration code, and documentation

  • Region: us-east-1 (unless user specifies, or GCP region → AWS region mapping suggests otherwise)

  • Sizing: Development tier (e.g., db.t4g.micro for databases, 0.5 CPU for Fargate)

  • Migration mode: Adapts based on available inputs (infrastructure, AI, or billing-only)

  • Cost currency: USD

  • Timeline assumption: 2-16 weeks depending on migration complexity — small (2-6 weeks), medium (6-12 weeks), large (12-18 weeks). See references/shared/migration-complexity.md for tier definitions.

Workflow Execution

When invoked, the agent MUST follow this exact sequence:

  1. Load phase status: Read .phase-status.json from .migration/*/.

    • If missing: Initialize for Phase 1 (Discover)

    • If exists: Determine current phase using deterministic rules in State Machine

  2. Determine phase to execute:

    • If current_phase exists: execute that phase.

    • Otherwise execute the first non-completed phase in ordered list: discover → clarify → design → estimate → generate.

    • If all ordered phases are completed: migration is complete (with feedback finalization rule).

  3. Read phase reference: Load the full reference file for the target phase.

  4. Execute ALL steps in order: Follow every numbered step in the reference file. Do not skip, optimize, or deviate.

  5. Validate outputs: Confirm all required output files exist with correct schema before proceeding. Phase orchestrators run Completion Handoff Gate checks per shared/handoff-gates.md.

  6. Handoff gate: Emit HANDOFF_OK or GATE_FAIL per shared/handoff-gates.md. On GATE_FAIL, stop — do not update phase status or load the next phase.

  7. Update phase status: Only after HANDOFF_OK. Use the Phase Status Update Protocol (read-merge-write) in the same turn as the phase's final output message.

  8. Feedback checkpoint: After a phase completes, check if feedback is due (see rules below). This runs before advancing to the next phase.

    • After Discover (if phases.feedback is "pending"): Output to user: "Would you like to share quick feedback (5 optional questions + anonymized usage data) to help improve this tool? Your data never includes resource names, file paths, or account IDs. [A] Send feedback now [B] Wait until after the Estimate phase"

      • If user picks A → Load references/phases/feedback/feedback.md, execute it, then continue to Clarify.

      • If user picks B → Continue to Clarify (feedback stays "pending").

    • After Estimate (if phases.feedback is "pending"): Output to user: "Would you like to share quick feedback now? (5 optional questions + anonymized usage data) [A] Yes, share feedback [B] No thanks, continue to Generate"

      • If user picks A → Load references/phases/feedback/feedback.md, execute it, then continue to Generate.

      • If user picks B → Use the Phase Status Update Protocol to set phases.feedback to "completed". Continue to Generate.

    • After Generate: No feedback offer. If phases.feedback is still "pending", use the Phase Status Update Protocol to set it to "completed" (user had two chances and chose to defer/skip).

  9. Display summary: Show user what was accomplished, highlight next phase, or confirm migration completion.

Critical constraint: Agent must strictly adhere to the reference file's workflow. If unable to complete a step, stop and report the exact step that failed.

User can invoke the skill again to resume from current_phase (or deterministic ordered evaluation when current_phase is absent).

Scope Notes

v1.0 includes:

  • Terraform infrastructure discovery

  • App code scanning (AI workload detection)

  • Billing data import from GCP

  • User requirement clarification (adaptive questions by category)

  • Multi-path Design (infrastructure, AI workloads, billing-only fallback)

  • AWS cost estimation (from pricing API or fallback)

  • Migration artifact generation (Terraform, scripts, AI adapters, documentation)

  • Optional feedback collection with anonymized telemetry

Files

references/phases/discover/discover-app-code.md

Discover Phase: App Code Discovery

Self-contained application code discovery sub-file. Scans for source code, detects GCP SDK imports, infers resources, flags AI signals, and if AI confidence >= 70%, extracts detailed AI workload information and generates ai-workload-profile.json. If no source code files are found, exits cleanly with no output.

Dead-end handling: If this file exits without producing artifacts (no source code found, or AI confidence < 70%), report to the parent orchestrator: what signals were found (if any), the confidence level, and that the user should provide Terraform files or billing exports to proceed with migration planning.

Execute ALL steps in order. Do not skip or optimize.


Step 0: Self-Scan for Source Code

Recursively scan the entire target directory tree for source code and dependency manifests:

Source code:

  • **/*.py (Python)

  • **/*.js, **/*.ts, **/*.jsx, **/*.tsx (JavaScript/TypeScript)

  • **/*.go (Go)

  • **/*.java (Java)

  • **/*.scala, **/*.kt, **/*.rs (Other)

Dependency manifests:

  • requirements.txt, setup.py, pyproject.toml, Pipfile (Python)

  • package.json, package-lock.json, yarn.lock (JavaScript)

  • go.mod, go.sum (Go)

  • pom.xml, build.gradle (Java)

Exit gate: If NO source code files or dependency manifests are found, exit cleanly. Return no output artifacts. Other sub-discovery files may still produce artifacts.

Secret file exclusion (HARD — no exceptions): Before scanning any file, skip the following paths entirely — do NOT read, parse, or include their contents in any output artifact:

  • .env* (matches .env, .env.local, .env.production, .env.staging, and any other .env variant)

  • credentials.json, service-account.json, *-service-account.json

  • *.pem, *.key, *.p12, *.pfx

  • secrets.yaml, secrets.yml

If any of these files are encountered during the recursive scan, log: "Skipped [filename] — potential secret file excluded from discovery scope." Do NOT include them in source file counts or any output.


Step 0.5: Auth SDK Exclusion List

Before scanning for GCP imports, check for third-party auth SDK imports. These are recognized but excluded from migration — they carry no AWS recommendation.

Import PatternAuth Provider
auth0 / @auth0/ / auth0-pythonAuth0
@supabase/supabase-js / supabase (with .auth)Supabase Auth
firebase-admin (with .auth) / firebase/auth / @angular/fire/authFirebase Auth
@clerk/ / clerk-sdk-pythonClerk
@okta/ / okta-sdk-python / okta-jwt-verifierOkta
keycloak / @keycloak/keycloak-admin-client / python-keycloakKeycloak
next-auth / @auth/coreNextAuth / Auth.js

If any auth SDK import is detected:

  1. Log: "Detected [provider] auth SDK in [file] — excluded from migration scope. Keep your existing auth solution."

  2. Do not infer a GCP resource or recommend an AWS replacement

  3. Do not include in the AI signal scan or any output artifact

Step 1: Detect GCP SDK Imports

Scan source files for GCP service imports:

  • google.cloud (Python: from google.cloud import ...)

  • @google-cloud/ (JS/TS: import ... from '@google-cloud/...')

  • cloud.google.com/go (Go: import "cloud.google.com/go/...")

  • com.google.cloud (Java: import com.google.cloud.*)

For each import found, record:

  • file_path — Source file containing the import

  • import_statement — The actual import line

  • inferred_gcp_service — Which GCP service this maps to

  • confidence — 0.60-0.80 (lower than IaC since we're inferring from code, not reading config)


Step 2: Infer Resources from Code

Map SDK imports to likely GCP resources. These are inferred — they supplement IaC evidence but at lower confidence:

Import patternInferred GCP resource
google.cloud.storageCloud Storage bucket
google.cloud.firestoreFirestore database
google.cloud.pubsubPub/Sub topic
google.cloud.bigqueryBigQuery dataset
google.cloud.sqlCloud SQL instance
google.cloud.runCloud Run service
google.cloud.functionsCloud Functions
google.cloud.secretmanagerSecret Manager
redis / ioredisRedis instance

Confidence for inferred resources: 0.60-0.80 (inferring existence, not reading infrastructure config).


Step 2.5: WebSocket Signal Scan

After Step 2 (Infer Resources from Code), scan source files for WebSocket / long-lived connection patterns:

PatternEvidence
WebSocket APIwebsocket, WebSocket, socket.io, @nestjs/websockets, FastAPI WebSocket, ws package imports
SSE / long-pollEventSource, text/event-stream, long-polling handlers

Record in discovery metadata (do not write a separate file):

  • websocket_signals_found: true if any pattern matches active (non-commented) code

  • websocket_signal_files: array of file paths where matches were found

If no matches, set websocket_signals_found: false. Clarify Step 2 uses this to skip Q9 with websocket: false extracted only when this step ran (source files were found).

If no source code files were found (Step 0 exit gate), do not set websocket_signals_found — Clarify must ask Q9; absence of a scan is not evidence of no WebSockets.


Step 3: Flag AI Signals

Scan source code files and dependency manifests for AI-relevant patterns. For each match, record the pattern, file location, and confidence score.

PatternWhat to look forConfidence
2.1 Google AI Platform SDKImports: google.cloud.aiplatform (Python), @google-cloud/aiplatform (JS), cloud.google.com/go/aiplatform (Go), com.google.cloud.aiplatform (Java)95%
2.2 BigQuery ML SDKgoogle.cloud.bigquery + ML operations; SQL containing CREATE MODEL or ML.*85%
2.3 LLM SDKs (Gemini)Imports: google.generativeai, vertexai.generative_models, Gemini model strings (gemini-pro, gemini-2.5-flash, etc.)98%
2.4 LLM SDKs (OpenAI)Imports: openai, from openai import OpenAI, client.chat.completions.create(), model strings (gpt-4o, gpt-4.1, o3, etc.)98%
2.5 LLM SDKs (Other)Imports: anthropic, cohere, mistralai, other LLM provider SDKs98%
2.6 Document/Vision/Speech AIImports: google.cloud.documentai*, google.cloud.vision*, google.cloud.speech*, google.cloud.translate*, google.cloud.dialogflow*90%
2.7 Embeddings & RAGlangchain + VertexAIEmbeddings; llama_index + Vertex AI; vector database usage with embeddings85%

Also check dependency manifests for AI/ML SDK dependencies:

  • google-cloud-aiplatform

  • google-cloud-vertexai

  • google-cloud-bigquery-ml

  • google-cloud-language

  • google-cloud-vision

  • google-cloud-speech

  • openai (OpenAI SDK — many GCP-hosted apps use OpenAI rather than Vertex AI)

  • anthropic (Anthropic SDK)

  • litellm (LLM router — indicates gateway usage)

  • langchain, langchain-google-vertexai, langchain-openai, langchain-aws (orchestration frameworks)


Step 3B: Agentic Framework Signals

Scan source code and dependency manifests for agentic framework patterns. These are separate from AI model signals — they indicate agent orchestration, not just LLM usage.

PatternWhat to look forConfidence
3B.1 LangGraphfrom langgraph imports, StateGraph(, add_node(, add_edge(, .compile()95%
3B.2 CrewAIfrom crewai imports, Crew(, Agent( with role=, Task( class definitions95%
3B.3 AutoGenfrom autogen imports, AssistantAgent(, GroupChat(, ConversableAgent(95%
3B.4 OpenAI Agents SDKfrom openai.agents or from agents import, openai.beta.assistants, Runner(95%
3B.5 Strands Agentsfrom strands imports, Agent( with tools=, Swarm(, GraphBuilder(95%
3B.5a Pydantic AIfrom pydantic_ai import Agent, from pydantic_ai.models imports, Agent(model=, .run_sync(, .run(95%
3B.5b Agnofrom agno.agent import Agent, from agno.models imports, Agent(model=, Team(, .print_response(95%
3B.6 Custom agent loopwhile loop body containing BOTH an LLM call (completions/generate) AND tool execution (function dispatch from model output) AND result parsing back to model80%
3B.7 Tool definitions@tool decorators, function_declarations=, tools=[{...schema...}], tool schema objects with name+description+parameters90%
3B.8 MCP integrationfrom mcp.server or from mcp.client, mcp.json config files, MCPClient(90%
3B.9 Agent memoryConversationBufferMemory(, ChatMessageHistory(, MemorySaver(, vector store retrieval feeding agent context85%

Also check dependency manifests for agentic framework dependencies:

  • langgraph (LangGraph)

  • crewai (CrewAI)

  • pyautogen or autogen (AutoGen)

  • openai with agents imports (OpenAI Agents SDK — same package, different import path)

  • strands-agents (Strands Agents SDK)

  • pydantic-ai (Pydantic AI)

  • agno (Agno)

  • mcp (Model Context Protocol SDK)


Step 3.5: Agentic Classification Gate

Determine whether the codebase contains agentic workflows. Execute these rules in order:

  1. If ANY framework signal from 3B.1–3B.5b detected → set is_agentic: true, set framework to the detected framework name

  2. If NO framework signal BUT 3B.6 (custom agent loop) detected → set is_agentic: true, set framework: "custom"

  3. If 3B.7 (tool definitions) detected WITH an LLM call in a loop pattern → set is_agentic: true, set framework: "custom"

  4. If ONLY 3B.8 (MCP integration) detected WITHOUT an agent loop → set is_agentic: false (MCP alone does not imply agent orchestration)

  5. If ONLY 3B.9 (agent memory) detected WITHOUT an agent loop or framework → set is_agentic: false

  6. If NO agentic signals detected → set is_agentic: false

If multiple frameworks detected: Set framework to the one with the most agent definitions. Record others in detection_signals.

If is_agentic: false: Skip Steps 5.5 and 6.5. Continue to Step 4.

If is_agentic: true: Continue to Step 4, then execute Steps 5.5 and 6.5 after Step 5.


Step 4: AI Detection Gate

Compute overall AI confidence from all signals found in Step 3:

IF (Multiple strong signals: LLM SDK + AI Platform SDK)
  THEN confidence = 95%+ (very high)

IF (Any one strong signal: LLM SDK, AI Platform SDK, Generative AI imports)
  THEN confidence = 90%+ (high)

IF (Weaker signals only: BigQuery ML, variable patterns)
  THEN confidence = 60-70% (medium)

IF (No signals found)
  THEN confidence = 0% (no AI workload detected)
False Positive Checklist

Before finalizing AI detection, verify signals are genuine:

  • BigQuery alone is not AI — Require google_bigquery_ml_model or CREATE MODEL SQL. A google_bigquery_dataset by itself is standard analytics.

  • Vector database alone is not AI — Require embeddings library imports (langchain, llama-index). A Firestore/Datastore by itself is a regular database.

  • Dead/commented-out code excluded — Only count active code.

Exit gate: If overall AI confidence < 70%:

  • If $MIGRATION_DIR/ai-workload-profile.json already exists with metadata.profile_source = "iac_vertex" (from discover-iac.md Step 7d — strong Vertex Terraform): exit cleanly without deleting or modifying that file. Report to the parent orchestrator: signals found, confidence below 70%, and that the IaC-inferred AI profile is retained for Clarify.

  • Otherwise: Do not generate ai-workload-profile.json. Report signals found, confidence level, and reason for not generating the AI profile. The inferred resources from Steps 1-2 remain available for other sub-files (e.g., discover-iac.md may use them for evidence merge). If no other sub-discoverer produces artifacts, the parent orchestrator will inform the user to provide Terraform files or billing exports.

If confidence >= 70%, continue to Steps 5-8 below.


Step 5: Extract AI Model Details

For each AI signal found during detection, extract model-level details:

From application code:

Scan files that contained AI signals for specific model information:

  • Model identifiers — Look for model name strings passed to constructors or API calls:

    Gemini/Vertex AI patterns:

    • GenerativeModel("gemini-pro") -> model_id: "gemini-pro"

    • aiplatform.Model.list(filter='display_name="my-model"') -> model_id: "my-model"

    • TextEmbeddingModel.from_pretrained("text-embedding-004") -> model_id: "text-embedding-004"

    • Look for Gemini model string patterns: gemini-pro, gemini-1.5-*, gemini-2.0-*, gemini-2.5-*, gemini-3-*, gemini-3.1-* — including versioned variants like gemini-2.5-flash-latest, gemini-2.5-flash-preview-*, gemini-2.5-flash-thinking, gemini-2.5-pro-preview-*. Normalize all gemini-2.5-flash-* variants to model_id: "gemini-2.5-flash" (or "gemini-2.5-flash-thinking" if the thinking variant is explicit). Normalize all gemini-2.5-pro-* variants to model_id: "gemini-2.5-pro". Record the raw string in detection_signals for reference.

    • Gemini 1.5 Legacy: Normalize gemini-1.5-flash* → model_id: "gemini-1.5-flash" and gemini-1.5-pro* → model_id: "gemini-1.5-pro". Set lifecycle_status: "legacy" and eol_date: "2025-09-24" on these model entries in ai-workload-profile.json. Surface in the AI Context Summary during Clarify: "⚠️ Gemini 1.5 Flash/Pro is past EOL (Sep 2025). Plan to upgrade the source model to 2.5 Flash/Pro as part of or before the AWS migration."

    OpenAI patterns:

    • client.chat.completions.create(model="gpt-4o") -> model_id: "gpt-4o"

    • openai.ChatCompletion.create(model="gpt-4") -> model_id: "gpt-4" (legacy API)

    • client.embeddings.create(model="text-embedding-3-small") -> model_id: "text-embedding-3-small"

    • Model strings in config files or environment variables: OPENAI_MODEL, MODEL_NAME, etc.

    • Look for model string patterns: gpt-*, o1*, o3*, o4*, text-embedding-*, dall-e-*, gpt-image-*, whisper-*, tts-*

    Anthropic patterns:

    • anthropic.Anthropic().messages.create(model="claude-*") -> model_id: "claude-*"

    • Look for model string patterns: claude-3-*, claude-sonnet-*, claude-haiku-*, claude-opus-*

  • Capabilities used — Determine from API calls and method signatures:

    • text_generation: generate_content(), predict(), messages.create(), chat.completions.create()

    • streaming: generate_content(stream=True), stream(), stream=True in OpenAI calls, async iterators

    • function_calling: tools= parameter, function_declarations=, functions= (OpenAI legacy), tool definitions

    • vision: image bytes, image URLs, or multimodal content passed as input

    • embeddings: TextEmbeddingModel, VertexAIEmbeddings, client.embeddings.create(), embedding API calls

    • batch_processing: batch predict calls, bulk processing patterns

    • json_mode: response_format={"type": "json_object"} (OpenAI), structured output schemas

    • image_generation: client.images.generate() (gpt-image / DALL-E legacy), Imagen API calls

    • speech_to_text: client.audio.transcriptions.create() (Whisper)

    • text_to_speech: client.audio.speech.create() (TTS)

  • Usage context — Infer from the combination of:

    • File path and module name (e.g., src/search/indexer.py -> search/indexing)

    • Class and function names (e.g., RecommendationEngine.get_recommendations -> recommendations)

    • Import statements (e.g., from langchain.embeddings -> embeddings/RAG)

    • Surrounding code context (what data flows in and out of the AI call)

From Terraform (if IaC discovery also ran):

  • Vertex AI endpoint configurations (display name, location, machine type)

  • Model deployment settings (traffic split, scaling)

  • Resource addresses for cross-referencing with code

From billing data (if billing discovery also ran):

  • Which AI services have billing line items

  • Monthly spend per AI service


Step 5B: Disambiguate AI Workloads by SDK Method

After extracting model details (Step 5), split the detected AI usage into distinct workloads — one per unique combination of (model_id, sdk_method, structured_output). This enables downstream phases to produce one Bedrock recommendation per workload instead of collapsing multiple capabilities into a single recommendation.

Load data/sdk-capability-map.json from the plugin source. If missing or malformed, halt with diagnostic: "[Discover] Failed to load sdk-capability-map.json".

For each AI call site detected in Steps 3–5:

  1. Resolve the SDK method — the fully qualified method name (e.g., ai.models.generateContent, openai.chat.completions.create, openai.images.generate). Match against sdk-capability-map.json entries using exact, case-sensitive equality.

  2. Detect structured output — for methods in structured_output_trio (chat.completions.create, messages.create, generateContent), check if the call passes any of: response_format, responseSchema, or responseMimeType: 'application/json'. If yes → structured_output: true, capability: "structured_output", confidence: "high". If no → structured_output: false, capability: "text_generation", confidence: "medium".

  3. Assign capability from map — for methods NOT in the structured-output trio, use the map value directly with confidence: "high". For methods not in the map at all → capability: "unknown", confidence: "low".

  4. Collapse by workload tuple — group call sites sharing the same (model_id, sdk_method, structured_output) into a single workload entry. Record all call_sites (file + line).

  5. Generate workload_id — deterministic hash: "wl_" + sha256(model_id + "|" + sdk_method + "|" + ("structured" if structured_output else "plain"))[:6]

Output: Add a workloads array to the ai-workload-profile.json output alongside the existing models[] field.

"workloads": [
  {
    "workload_id": "wl_3a1f2c",
    "model_id": "gemini-2.5-flash",
    "sdk_method": "ai.models.generateContent",
    "capability": "text_generation",
    "capability_confidence": "medium",
    "structured_output": false,
    "call_sites": [
      { "file": "lib/gemini.ts", "line": 11 }
    ]
  },
  {
    "workload_id": "wl_8e22b4",
    "model_id": "gemini-2.5-flash",
    "sdk_method": "ai.models.generateContent",
    "capability": "structured_output",
    "capability_confidence": "high",
    "structured_output": true,
    "call_sites": [
      { "file": "lib/gemini.ts", "line": 27 }
    ]
  },
  {
    "workload_id": "wl_c97d10",
    "model_id": "imagen-3.0-generate-001",
    "sdk_method": "ai.models.generateImages",
    "capability": "image_generation",
    "capability_confidence": "high",
    "structured_output": false,
    "call_sites": [
      { "file": "lib/imagen.ts", "line": 60 }
    ]
  }
]

Rules:

  • workloads[] is an empty array when no AI call sites are detected

  • call_sites[].file uses repo-relative POSIX paths

  • Every model_id in workloads[] MUST also appear in models[] (backward compatibility)

  • If a method is in the structured-output trio AND the model is multimodal (Gemini, GPT-4o, Claude) AND structured output is NOT detected → set capability_confidence: "medium" (ambiguous — Clarify will confirm)


Skip this step entirely if is_agentic: false from Step 3.5.

For each detected agent in the codebase, extract:

  1. Agent identifier (agent_id) — Class name, variable name, or function name that defines the agent. Use snake_case normalized form (e.g., ResearchAgent → "research-agent", research_agent → "research-agent").

  2. File and line — Source file and line number where the agent is defined.

  3. Model ID — The LLM model this agent uses. Look for:

    • Constructor parameter: Agent(model="gpt-4o"), Agent(llm=ChatOpenAI(model="gpt-4o"))

    • Config reference: model string in config file referenced by agent

    • Set to "unknown" if model is not extractable from code

  4. Tools list — Tool names attached to this agent. Look for:

    • tools=[web_search, calculator] → ["web_search", "calculator"]

    • @tool decorated functions passed to agent

    • Tool schema objects in function_declarations or tools parameter

    • Set to [] if no tools detected

  5. Memory type — Classify per-agent memory:

    • "conversation_buffer" — ConversationBufferMemory, ChatMessageHistory, message list accumulation

    • "rag" — Vector store retrieval feeding agent context, RetrievalQA, knowledge base lookup

    • "none" — No memory pattern detected for this agent

    • "unknown" — Memory detected but type indeterminate

  6. Role — Human-readable description of what this agent does. Infer from:

    • System prompt or role= parameter

    • Class/function docstring

    • Variable name and surrounding context

    • Keep to one sentence

Classify orchestration pattern from the overall agent architecture:

PatternEvidence
singleOne agent definition, no delegation or coordination
hierarchicalOne orchestrator agent delegates to specialist agents (agents-as-tools, manager/worker)
swarmMultiple agents share memory/state, no fixed hierarchy (CrewAI process=Process.hierarchical is hierarchical, not swarm)
graphExplicit node/edge definitions, conditional routing between agents (StateGraph, GraphBuilder, add_edge)
sequentialAgents execute in fixed order, output of one feeds next (process=Process.sequential in CrewAI, pipeline patterns)
unknownAgentic signals detected but orchestration pattern unclear from code

Determine system-level memory:

  • has_memory: true if ANY agent has memory OR if shared memory store detected

  • memory_backend: Classify from imports/config:

    • "redis" — Redis client imports, RedisMemory, Redis URL in config

    • "postgres" — PostgreSQL connection for memory/history storage

    • "in_memory" — In-process memory only (default ConversationBufferMemory, Python dicts)

    • "vector_store" — Pinecone, Weaviate, ChromaDB, pgvector for memory retrieval

    • "unknown" — Memory detected but backend indeterminate

Determine human-in-the-loop:

  • has_human_in_loop: true if any of:

    • HumanInputRun, human_input tool, input() calls in agent loop

    • Approval/confirmation patterns before tool execution

    • handoff_to_user tool or similar delegation to human


Step 6: Map Integration Patterns

Determine how the application integrates with AI services:

  • Primary SDK: Which Google AI SDK is used

    • google-cloud-aiplatform (Vertex AI Platform SDK)

    • google-generativeai (Gemini API)

    • vertexai (Vertex AI SDK for Python)

    • @google-cloud/aiplatform (Node.js)

    • cloud.google.com/go/aiplatform (Go)

  • SDK version: Extract from dependency files (requirements.txt, package.json, go.mod, etc.)

  • Frameworks: Does the code use orchestration frameworks?

    • LangChain (from langchain...)

    • LlamaIndex (from llama_index...)

    • Semantic Kernel

    • No framework (raw SDK calls)

  • Languages: Which programming languages contain AI code?

  • Integration pattern: Classify as one of:

    • direct_sdk — Direct Google SDK calls (e.g., aiplatform.init(), model.predict()) or OpenAI SDK calls

    • framework — Via LangChain, LlamaIndex, or similar

    • rest_api — Raw HTTP calls to Vertex AI or OpenAI endpoints

    • mixed — Combination of the above

  • Gateway/router type (gateway_type): Detect whether AI calls go through a gateway, router, or framework. This critically affects migration effort (gateway users can migrate in 1-3 days vs 1-3 weeks for direct SDK).

    Scan for these patterns and classify:

    PatternGateway TypeEvidence
    from litellm import completion / litellm in dependenciesllm_routerLiteLLM — multi-provider router
    base_url containing openrouter.ai in source codellm_routerOpenRouter — multi-provider router (code)
    Env var OPENAI_BASE_URL containing openrouter.ai in .env, docker-compose.yml, CI config, or shell scriptsllm_routerOpenRouter — env-configured router
    Env var OPENROUTER_API_KEY or OR_API_KEY present in .env, docker-compose.yml, CI config, or shell scriptsllm_routerOpenRouter — API key detected
    Env var LITELLM_PROXY_BASE_URL or LITELLM_API_KEY present in any config filellm_routerLiteLLM proxy — env-configured
    portkey imports or x-portkey- headersllm_routerPortkey — AI gateway
    helicone imports or x-helicone- headersllm_routerHelicone — AI gateway
    Kong, Apigee, or custom API gateway routing to AI endpointsapi_gatewayAPI gateway proxying AI calls
    from vapi_python import Vapi / Vapi SDKvoice_platformVapi — voice AI platform
    bland SDK or Bland.ai API callsvoice_platformBland.ai — voice AI platform
    retell SDK or Retell API callsvoice_platformRetell — voice AI platform
    from langchain with provider importsframeworkLangChain orchestration framework
    from llama_index with provider importsframeworkLlamaIndex orchestration framework
    Direct SDK calls only (no router/gateway/framework)directDirect API integration

    Env var scan scope for gateway detection: Check these files for OPENAI_BASE_URL, OPENROUTER_API_KEY, OR_API_KEY, LITELLM_PROXY_BASE_URL, LITELLM_API_KEY:

    • .env, .env.local, .env.production, .env.staging, .env.* (any environment file)

    • docker-compose.yml, docker-compose.*.yml

    • .github/workflows/*.yml, .gitlab-ci.yml, cloudbuild.yaml, Jenkinsfile

    • Shell scripts: *.sh, Makefile

    • fly.toml, railway.toml, render.yaml, vercel.json, netlify.toml

    Do NOT read secret values — only check for the presence of the key name. Log: "Detected [KEY_NAME] in [file] — classified as llm_router (OpenRouter/LiteLLM)."

    Set gateway_type to null if no AI signals were detected or detection is ambiguous.

Build the capabilities summary — a flat boolean map of which AI capabilities are actively used across all detected models:

{
  "text_generation": true,
  "streaming": true,
  "function_calling": false,
  "vision": false,
  "embeddings": true,
  "batch_processing": false
}

A capability is true only if there is evidence from code analysis that it is actively used.


Step 6.5: Extract Tool Manifest (Only if is_agentic: true)

Skip this step entirely if is_agentic: false from Step 3.5.

Catalog all tool definitions found in agent code. This is inventory only — do NOT include migration recommendations, AWS equivalents, or effort estimates.

For each tool detected in Step 5.5 (from agent tools lists) or Step 3B.7 (tool definitions):

  1. Name — Tool name as defined in code (function name, name field in schema, decorator argument)

  2. File and line — Source file and line number where the tool is defined or imported

  3. Transport classification — How the tool communicates:

    • "function" — Local function with @tool decorator, no network calls in body, pure computation or file I/O

    • "api" — HTTP client calls in tool body (requests.get, httpx.post, fetch, external URL references)

    • "mcp" — MCP client imports, MCP server URL in tool config, tool served via MCP protocol

    • "unknown" — Tool schema defined but implementation not inspectable (e.g., imported from external package)

  4. Auth hint — Detected authentication pattern in tool implementation:

    • "none" — No credentials, tokens, or auth headers visible

    • "api_key" — API key env var (os.environ["API_KEY"]), Authorization: Bearer header, x-api-key header

    • "oauth" — OAuth flow, token refresh logic, client_id/client_secret patterns

    • "iam" — AWS SigV4, boto3 client usage, IAM role assumption, GCP service account credentials

    • "unknown" — Auth pattern not determinable from code inspection

  5. Used by agents — Array of agent_id values (from Step 5.5) that reference this tool. A tool may be used by multiple agents.

Deduplication: If the same tool is used by multiple agents, create one tool_manifest entry with all agent IDs in used_by_agents. Do not duplicate tool entries.


Step 7: Capture Supporting Infrastructure

Only if Terraform files were found (IaC discovery also ran), extract AI-related infrastructure resources:

  • AI resources: google_vertex_ai_endpoint, google_vertex_ai_model, google_vertex_ai_featurestore, google_vertex_ai_index, google_vertex_ai_tensorboard, etc.

  • Supporting resources that serve AI primaries:

    • Service accounts used by AI endpoints

    • VPC connectors attached to AI services

    • Secret Manager entries referenced by AI code (API keys, credentials)

    • Cloud Storage buckets used for model artifacts or training data

For each resource, capture: address, type, file, and relevant config.

If no Terraform files were provided, set infrastructure: [].


Step 8: Generate ai-workload-profile.json

Load references/shared/schema-discover-ai.md and generate output following the ai-workload-profile.json schema.

Pre-existing IaC profile (profile_source: "iac_vertex")

If $MIGRATION_DIR/ai-workload-profile.json already exists with metadata.profile_source = "iac_vertex":

  1. Execute Steps 5–7 to build the code-derived profile content as usual.

  2. Merge into the final file written to $MIGRATION_DIR/ai-workload-profile.json:

    • Set metadata.profile_source to "merged".

    • Set metadata.sources_analyzed.terraform to true when Terraform was present in the project (IaC discovery ran).

    • Set metadata.sources_analyzed.application_code to true.

    • Code wins on conflict for models[], integration, summary.ai_source, summary.overall_confidence, summary.confidence_level, and detection_signals (code-derived signals take precedence; you may append non-duplicate Terraform detection_signals entries).

    • infrastructure[]: Union by resource address. Include all Vertex-related entries from the IaC profile plus any from Step 7; where the same address appears, prefer the entry with richer config (typically Step 7 after code).

    • Set summary.inferred_from_iac to false when Step 5–6 populated models or integration from code; if models[] is still empty after code analysis, keep inferred_from_iac consistent with whether Clarify still needs to disambiguate (default false once code path ran at ≥70% confidence).

  3. If no pre-existing iac_vertex file, generate a fresh profile with metadata.profile_source = "application_code".

CRITICAL field names — use EXACTLY these keys:

  • model_id (not model_name, name)

  • service (not service_type, gcp_service)

  • detected_via (not detection_method, source)

  • capabilities_used (not capabilities, features)

  • usage_context (not description, purpose)

  • pattern in integration (not integration_type, method)

  • gateway_type in integration (not gateway, router_type)

  • capabilities_summary (not capabilities, feature_flags)

  • ai_source in summary (not provider, source_provider)

Determining ai_source:

  • "gemini" — Only Gemini/Vertex AI generative models detected (patterns 2.3)

  • "openai" — Only OpenAI SDK/models detected (patterns 2.4)

  • "anthropic" — Only Anthropic SDK detected (pattern 2.5, anthropic package, claude-* model strings) with no Gemini or OpenAI signals

  • "both" — Both Gemini and OpenAI detected in the same codebase; or Anthropic + any other provider

  • "other" — Traditional ML only (custom models, Vision API, Speech API, Document AI) with no LLM SDK detected

Note: Anthropic SDK users are migrating to Bedrock-hosted Claude models, not to SageMaker. Setting ai_source: "anthropic" ensures Design routes to the correct Bedrock migration path rather than the traditional ML rubric.

Conditional sections:

  • current_costs — Include ONLY if billing data was provided (billing discovery ran). Omit entirely if no billing data.

  • infrastructure — Set to [] if no Terraform files were provided (IaC discovery did not run).

  • agentic_profile — Include ONLY if is_agentic: true from Step 3.5. Omit entirely if not agentic.

  • tool_manifest — Include ONLY if agentic_profile exists. Set to [] if agentic but no tools detected in Step 6.5.

After generating the output file, the parent discover.md handles the phase status update — do not update .phase-status.json here.


Output Validation Checklist — ai-workload-profile.json

  • metadata.profile_source is one of: "application_code", "iac_vertex", "merged"

  • metadata.sources_analyzed reflects which data sources were actually provided

  • summary.overall_confidence matches the detection confidence from Step 4

  • summary.total_models_detected matches the length of models array

  • summary.ai_source is set correctly: "gemini", "openai", "anthropic", "both", or "other" based on detected LLM SDKs

  • Every entry in models has model_id, service, detected_via, evidence, capabilities_used, and usage_context

  • models[].detected_via only contains sources that were actually analyzed ("code", "terraform", "billing")

  • models[].evidence array has at least one entry per source listed in detected_via

  • models[].capabilities_used only lists capabilities with evidence from code analysis

  • integration.capabilities_summary is consistent with the union of all models[].capabilities_used

  • integration.gateway_type is set: one of "llm_router", "api_gateway", "voice_platform", "framework", "direct", or null

  • infrastructure is empty array [] if no Terraform was provided

  • current_costs section is present ONLY if billing data was provided; omitted entirely otherwise

  • detection_signals matches the signals found in Step 3

  • All field names use EXACT required keys

  • workloads[] is present (empty array if no AI call sites; one entry per distinct (model_id, sdk_method, structured_output) tuple)

  • Every workloads[].model_id also appears in models[].model_id

  • workloads[].capability_confidence is one of: "high", "medium", "low"

  • workloads[].workload_id matches pattern wl_[0-9a-f]{6}

  • If is_agentic: true: agentic_profile section exists with all required fields

  • If is_agentic: true: agentic_profile.agent_count equals length of agentic_profile.agents[]

  • If is_agentic: true: agentic_profile.tool_count equals length of tool_manifest[] (deduplicated)

  • If is_agentic: true: agentic_profile.framework is one of: "langgraph", "crewai", "autogen", "openai_agents", "strands", "pydantic_ai", "agno", "custom", "none"

  • If is_agentic: true: agentic_profile.orchestration_pattern is one of: "single", "hierarchical", "swarm", "graph", "sequential", "unknown"

  • If is_agentic: true: every agent_id in tool_manifest[].used_by_agents exists in agentic_profile.agents[].agent_id

  • If is_agentic: true: tool_manifest[].transport is one of: "function", "api", "mcp", "unknown"

  • If is_agentic: true: tool_manifest[].auth_hint is one of: "none", "api_key", "oauth", "iam", "unknown"

  • If is_agentic: false: agentic_profile and tool_manifest are ABSENT from output (not present with null/false values)


Design Phase Integration

The Design phase (references/phases/design/design.md) uses ai-workload-profile.json:

  1. summary.ai_source — Routes to the correct design reference: "gemini" → ai-gemini-to-bedrock.md, "openai" → ai-openai-to-bedrock.md, "anthropic" → ai-anthropic-to-bedrock.md (Anthropic SDK → Bedrock Converse API client swap), "both" → load both Gemini and OpenAI refs, "other" → ai.md (traditional ML / Vision API / Speech API only)

  2. models — Determines which Bedrock models to recommend via the model selection decision tree

  3. integration.capabilities_summary — Validates Bedrock feature parity (e.g., if function_calling is true, selected Bedrock model must support tool use)

  4. integration.pattern and integration.primary_sdk — Determines code migration guidance (direct SDK swap vs framework provider swap vs REST endpoint change)

  5. integration.gateway_type — Determines migration effort and approach: "llm_router" or "framework" → config change (1-3 days); "direct" → full SDK swap (1-3 weeks)

  6. integration.frameworks — If LangChain is used, migration may be simpler (swap provider, keep chains)

  7. infrastructure — Identifies supporting AWS resources needed (IAM roles, VPC config)

  8. current_costs.monthly_ai_spend — Baseline for cost comparison in estimate phase

  9. agentic_profile (if present) — Routes to agentic design path: determines migration approach (retarget / Harness / Strands), maps tools to AgentCore Gateway targets, configures AgentCore Memory

  10. tool_manifest (if present) — Inventories tools for AgentCore Gateway or Harness tool configuration


Scope Boundary

This phase covers Discover & Analysis ONLY.

FORBIDDEN — Do NOT include ANY of:

  • AWS service names, recommendations, or equivalents

  • Migration strategies, phases, or timelines

  • Terraform generation for AWS

  • Cost estimates or comparisons

  • Effort estimates

Your ONLY job: Inventory what exists in GCP. Nothing else.

Requirements and compatibility

Written for: Claude Code

Works with: Claude Code, Claude apps, OpenAI Codex, GitHub Copilot, Cursor, Gemini CLI, Kiro, OpenCode, Goose, Amp, Roo Code, JetBrains Junie, Factory Droid, Devin (ex-Windsurf), Mistral Vibe, OpenHands, Letta

“Works with” means the tool reads the open Agent Skills format; a skill written for one tool may use features others lack.

Needs: Names Claude Code tools, Needs an MCP server

Security

What our scanner noticed· Low risk

  • Instructions that use the network

A static scan is not a guarantee. Skills are third-party content: review a skill before you let an agent use it.

Attribution and licence

Published by
Cline
Publisher
Cline (Official)
Source
cline/skills · skills/gcp-to-aws · commit 2637846
Licence
Apache License 2.0 (redistribution allowed)
  • LICENSE (added by AutoGineer from LICENSE)
  • ATTRIBUTION.md (written by AutoGineer)
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Download ZIP

The ZIP holds the skill’s files, its licence files and an ATTRIBUTION.md. Download gcp-to-aws.zip