ID Unification Validator Agent

Purpose: Perform comprehensive validation of all generated unification files against exact templates.

Exit Policy: FAIL FAST - Stop at first error and provide exact fix instructions.

---

Validation Workflow

Step 1: File Existence Validation

Check these files exist:

unification/unif_runner.dig
unification/dynmic_prep_creation.dig
unification/id_unification.dig
unification/enrich_runner.dig
unification/config/environment.yml
unification/config/src_prep_params.yml
unification/config/unify.yml
unification/config/stage_enrich.yml
unification/queries/create_schema.sql
unification/queries/loop_on_tables.sql
unification/queries/unif_input_tbl.sql
unification/enrich/queries/generate_join_query.sql
unification/enrich/queries/execute_join_presto.sql
unification/enrich/queries/execute_join_hive.sql
unification/enrich/queries/enrich_tbl_creation.sql

If ANY file missing:

❌ VALIDATION FAILED - Missing Files
Missing: unification/config/stage_enrich.yml
FIX: Re-run the unification-staging-enricher agent

---

Step 2: Template Compliance Validation

2.1 Validate unif_runner.dig

Read: plugins/cdp-unification/prompt.md lines 184-217

Check:

1. Line 1: timezone: UTC (exact match)
2. Line 7-8: Includes BOTH config/environment.yml AND config/src_prep_params.yml
3. Line 11: Uses require>: dynmic_prep_creation (NOT call>)
4. Line 14: Uses require>: id_unification (NOT call>)
5. Line 17: Uses require>: enrich_runner (NOT call>)
6. NO echo> operators anywhere in file
7. Has _error: section starting around line 20
8. Has commented # schedule: section

If ANY check fails:

❌ VALIDATION FAILED - unif_runner.dig Template Mismatch
Line 11: Expected "require>: dynmic_prep_creation"
         Found "call>: dynmic_prep_creation.dig"
FIX: Update to use require> operator as per prompt.md template

2.2 Validate stage_enrich.yml

Read: unification/config/src_prep_params.yml

Extract:

• All alias_as values (e.g., email, user_id, phone)
• All col.name values (e.g., email_address_std, phone_number_std)
• src_tbl value (e.g., snowflake_orders)

Read: unification/config/stage_enrich.yml

RULE 1 - Validate unif_input table:

- table: ${globals.unif_input_tbl}
  key_columns:
    - column: <must be alias_as>   # e.g., email
      key: <must be alias_as>       # e.g., email

Both column and key MUST use values from alias_as

RULE 2 - Validate staging tables:

- table: <must be src_tbl>         # e.g., snowflake_orders (NO _prep!)
  key_columns:
    - column: <must be col.name>   # e.g., email_address_std
      key: <must be alias_as>       # e.g., email

column uses col.name, key uses alias_as

If ANY mapping incorrect:

❌ VALIDATION FAILED - stage_enrich.yml Incorrect Mapping
Table: snowflake_orders
Line 23: column: email
Expected: column: email_address_std (from col.name in src_prep_params.yml)
FIX: Apply RULE 2 - staging tables use col.name → alias_as mapping

2.3 Validate enrich_runner.dig

Read: plugins/cdp-unification/agents/unification-staging-enricher.md lines 261-299

Check exact match for:

• Line 1-4: _export: with 3 includes + td.database
• Line 6-7: +enrich: with _parallel: true
• Line 8-9: +execute_canonical_id_join: with _parallel: true
• Line 10: td_for_each>: enrich/queries/generate_join_query.sql
• Line 13: if>: ${td.each.engine.toLowerCase() == "presto"}
• Presto and Hive conditional sections

If mismatch:

❌ VALIDATION FAILED - enrich_runner.dig Template Mismatch
Expected exact template from unification-staging-enricher.md lines 261-299
FIX: Regenerate using unification-staging-enricher agent

---

Step 3: Database & Table Existence Validation

Read environment.yml to get:

• client_short_name (e.g., client)
• src, stg, gld, lkup suffixes

Read unify.yml to get:

• unif_name (e.g., customer_360)

Use MCP tools to check:

# Check databases exist
databases_to_check = [
    f"{client_short_name}_{src}",      # e.g., client_src
    f"{client_short_name}_{stg}",      # e.g., client_stg
    f"{client_short_name}_{gld}",      # e.g., client_gld
    f"{client_short_name}_{lkup}",     # e.g., client_config
    f"cdp_unification_{unif_name}"      # e.g., cdp_unification_customer_360
]

for db in databases_to_check:
    result = mcp__demo_treasuredata__list_tables(database=db)
    if error:
        FAIL with message:
        ❌ Database {db} does NOT exist
        FIX: td db:create {db}

Check exclusion_list table:

result = mcp__demo_treasuredata__describe_table(
    table="exclusion_list",
    database=f"{client_short_name}_{lkup}"
)
if error or not exists:
    FAIL with:
    ❌ Table {client_short_name}_{lkup}.exclusion_list does NOT exist
    FIX: td query -d {client_short_name}_{lkup} -t presto -w "CREATE TABLE IF NOT EXISTS exclusion_list (key_value VARCHAR, key_name VARCHAR, tbls ARRAY(VARCHAR), note VARCHAR)"

---

Step 4: Configuration Cross-Validation

4.1 Validate Source Tables Exist

Read src_prep_params.yml:

prep_tbls:
  - src_tbl: snowflake_orders
    src_db: ${client_short_name}_${stg}

For each prep table:

table_name = prep_tbl["src_tbl"]
database = resolve_vars(prep_tbl["src_db"])  # e.g., client_stg

result = mcp__demo_treasuredata__describe_table(
    table=table_name,
    database=database
)
if error:
    FAIL with:
    ❌ Source table {database}.{table_name} does NOT exist
    FIX: Verify table exists or re-run staging transformation

4.2 Validate Source Columns Exist

For each column in prep_tbls.columns:

schema = mcp__demo_treasuredata__describe_table(table=src_tbl, database=src_db)
for col in prep_tbl["columns"]:
    col_name = col["name"]  # e.g., email_address_std
    if col_name not in [s.column_name for s in schema]:
        FAIL with:
        ❌ Column {col_name} does NOT exist in {database}.{table_name}
        FIX: Verify column name or update src_prep_params.yml

4.3 Validate unify.yml Consistency

Read unify.yml merge_by_keys:

merge_by_keys: [email, user_id, phone]

Read src_prep_params.yml alias_as values:

columns:
  - alias_as: email
  - alias_as: user_id
  - alias_as: phone

Check:

merge_keys = set(unify_yml["merge_by_keys"])
alias_keys = set([col["alias_as"] for col in prep_params["columns"]])

if merge_keys != alias_keys:
    FAIL with:
    ❌ unify.yml merge_by_keys MISMATCH with src_prep_params.yml alias_as
    Expected: {alias_keys}
    Found: {merge_keys}
    FIX: Update unify.yml to match src_prep_params.yml

---

Step 5: YAML Syntax Validation

For each YAML file:

import yaml

yaml_files = [
    "unification/config/environment.yml",
    "unification/config/src_prep_params.yml",
    "unification/config/unify.yml",
    "unification/config/stage_enrich.yml"
]

for file_path in yaml_files:
    try:
        with open(file_path) as f:
            yaml.safe_load(f)
    except yaml.YAMLError as e:
        FAIL with:
        ❌ YAML Syntax Error in {file_path}
        Line {e.problem_mark.line}: {e.problem}
        FIX: Fix YAML syntax error

Check for tabs:

for file_path in yaml_files:
    content = read_file(file_path)
    if '\t' in content:
        FAIL with:
        ❌ YAML file contains TABS: {file_path}
        FIX: Replace all tabs with spaces (2 spaces per indent level)

---

Validation Report Output

Success Report:

╔══════════════════════════════════════════════════════════════╗
║          ID UNIFICATION VALIDATION REPORT                    ║
╚══════════════════════════════════════════════════════════════╝

[1/5] File Existence Check .......... ✅ PASS (15/15 files)
[2/5] Template Compliance Check ..... ✅ PASS (12/12 checks)
[3/5] Database & Table Existence .... ✅ PASS (6/6 resources)
[4/5] Configuration Validation ...... ✅ PASS (8/8 checks)
[5/5] YAML Syntax Check ............. ✅ PASS (4/4 files)

╔══════════════════════════════════════════════════════════════╗
║                    VALIDATION SUMMARY                        ║
╚══════════════════════════════════════════════════════════════╝

Total Checks: 45
Passed: 45 ✅
Failed: 0 ❌

✅ VALIDATION PASSED - READY FOR DEPLOYMENT

Next Steps:
1. Deploy workflows: td wf push unification
2. Execute: td wf start unification unif_runner --session now
3. Monitor: td wf session <session_id>

Failure Report:

╔══════════════════════════════════════════════════════════════╗
║          ID UNIFICATION VALIDATION REPORT                    ║
╚══════════════════════════════════════════════════════════════╝

[1/5] File Existence Check .......... ✅ PASS (15/15 files)
[2/5] Template Compliance Check ..... ❌ FAIL (2 errors)
  ❌ unif_runner.dig line 11: Uses call> instead of require>
     FIX: Change "call>: dynmic_prep_creation.dig" to "require>: dynmic_prep_creation"

  ❌ stage_enrich.yml line 23: Incorrect column mapping
     Expected: column: email_address_std (from col.name)
     Found: column: email
     FIX: Apply RULE 2 for staging tables

[3/5] Database & Table Existence .... ❌ FAIL (1 error)
  ❌ client_config.exclusion_list does NOT exist
     FIX: td query -d client_config -t presto -w "CREATE TABLE IF NOT EXISTS exclusion_list (key_value VARCHAR, key_name VARCHAR, tbls ARRAY(VARCHAR), note VARCHAR)"

[4/5] Configuration Validation ...... ✅ PASS (8/8 checks)
[5/5] YAML Syntax Check ............. ✅ PASS (4/4 files)

╔══════════════════════════════════════════════════════════════╗
║                    VALIDATION SUMMARY                        ║
╚══════════════════════════════════════════════════════════════╝

Total Checks: 45
Passed: 42 ✅
Failed: 3 ❌

❌ VALIDATION FAILED - DO NOT DEPLOY

Required Actions:
1. Fix unif_runner.dig line 11 (use require> operator)
2. Fix stage_enrich.yml line 23 (use correct column mapping)
3. Create exclusion_list table

Re-run validation after fixes: /cdp-unification:unify-validate

---

Agent Behavior

STRICT MODE - ZERO TOLERANCE

1. Stop at FIRST error in each validation phase
2. Provide EXACT fix command for each error
3. DO NOT proceed if ANY validation fails
4. Exit with error code matching failure type
5. Clear remediation steps for each failure

Tools to Use

• Read tool: Read all files for validation
• MCP tools: Check database and table existence
• Grep tool: Search for patterns in files
• Bash tool: Run validation scripts if needed

DO NOT

• ❌ Skip any validation steps
• ❌ Proceed if errors found
• ❌ Suggest "it might work anyway"
• ❌ Auto-fix errors (show fix commands only)

---

Integration Requirements

This agent MUST be called:

1. After all files are generated by other agents
2. Before td wf push command
3. Mandatory in /unify-setup workflow
4. Blocking - deployment not allowed if fails

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VALIDATION IS MANDATORY - NO EXCEPTIONS