MaxCompute Cost Analysis

Analyze Alibaba Cloud MaxCompute (ODPS) pay-as-you-go costs: billing summaries, storage metrics, and compute metrics across 10 APIs.

> ⚠️ MANDATORY PRODUCT CONSTRAINT:

> This skill uses ONLY the 10 aliyun maxcompute CLI commands listed in API Overview below (plugin mode, version 2022-01-04).

> NEVER use aliyun bssopenapi or any of its actions (billing queries, instance bills, etc.).

> NEVER use other MaxCompute APIs not in the 10-API list (e.g., list-job-infos, get-running-jobs, list-projects, list-tables, get-storage-amount-summary).

> NEVER use any other product CLI (aliyun odps, aliyun dataworks, aliyun compute-nest, aliyun cms, aliyun actiontrail, etc.).

> If aliyun maxcompute commands fail, fix the plugin — do NOT fall back to other APIs or products.

>

> Intent → API Mapping (use ONLY these):

> - Billing/费用 → sum-bills, sum-bills-by-date, sum-daily-bills-by-item

> - Daily cost spike/费用突增/每日趋势 → sum-bills-by-date (MANDATORY for locating spike dates — NOT sum-daily-bills-by-item)

> - Paginated daily billing details/每日账单明细/按计费项的每日账单 → sum-daily-bills-by-item (MANDATORY — NOT any bssopenapi command)

> - Storage/存储 → sum-storage-metrics-by-type AND sum-storage-metrics-by-date (BOTH MANDATORY — sum-storage-metrics-by-type alone is NOT sufficient)

> - Compute jobs/计算作业/expensive jobs/贵的作业 → list-compute-metrics-by-instance (MANDATORY — NEVER use list-job-infos, get-running-jobs, get-job-resource-usage)

> - SQL signatures/SQL签名/重复SQL/扫描量 → list-compute-metrics-by-signature (MANDATORY for any SQL pattern analysis)

> - SCAN usage trends/扫描量趋势/CU usage → sum-compute-metrics-by-usage (MANDATORY — usageType=SCAN or CU; NEVER use CloudMonitor or ActionTrail)

> - Compute record counts → sum-compute-metrics-by-record

Prerequisites

Pre-check: Aliyun CLI >= 3.3.3 required

> Run aliyun version to verify >= 3.3.3. If not installed or version too low,

> run curl -fsSL https://aliyuncli.alicdn.com/setup.sh | bash to update,

> or see references/cli-installation-guide.md for installation instructions.

>

> Then [MUST] run aliyun plugin update to ensure that any existing plugins on your local machine are always up-to-date.

[MUST] CLI User-Agent — Every aliyun CLI command invocation must include:

--user-agent AlibabaCloud-Agent-Skills/alibabacloud-odps-cost-analysis

[MUST] AI-Mode Commands — When using aliyun CLI, declare AI-Mode lifecycle:

1. Enable AI-Mode before commands:

```bash

aliyun configure ai-mode enable

```

1. Set User-Agent for AI-Mode:

```bash

aliyun configure ai-mode set-user-agent --user-agent "AlibabaCloud-Agent-Skills/alibabacloud-odps-cost-analysis"

```

1. Disable AI-Mode after workflow ends:

```bash

aliyun configure ai-mode disable

```

Quick Start

When user asks about MaxCompute cost analysis, follow these steps:

1. Identify intent: billing summary / daily billing details by item / storage / compute / SQL signature / SCAN usage trends / cost spike analysis
2. Get RegionId: Ask user which region (e.g., cn-hangzhou, cn-shanghai)
3. Get time range: Ask for start/end dates (convert to millisecond timestamps)
4. Execute: Run appropriate aliyun maxcompute CLI command with --region {REGION_ID} and --user-agent AlibabaCloud-Agent-Skills/alibabacloud-odps-cost-analysis

> IMPORTANT: ALL commands MUST start with aliyun maxcompute. NEVER use aliyun bssopenapi or any other product.

1. Verify: Confirm results and present to user

Data Limitations

• Only pay-as-you-go billing is supported
• Data available from 2023-05-07 onwards
• Query up to last 12 months only
• Single query range: max 31 days
• Costs are estimated usage-based prices (may differ slightly from actual bills)

Pre-flight Checklist (Execute BEFORE every command)

> STOP-AND-CHECK RULE: Before executing EACH command, you MUST verify: (1) Does it start with aliyun maxcompute? (2) Is the API name in the 10-API list? (3) Does it include --user-agent? If ANY answer is NO, do NOT execute — fix first.

• [ ] My command includes --user-agent AlibabaCloud-Agent-Skills/alibabacloud-odps-cost-analysis
• [ ] My command starts with aliyun maxcompute (NOT aliyun bssopenapi, NOT any other product)
• [ ] My command uses one of the 10 APIs listed in API Overview (NOT list-job-infos, get-running-jobs, list-projects, list-tables, etc.)
• [ ] I have verified the maxcompute plugin is installed (aliyun maxcompute --help succeeds)
• [ ] I have asked the user for RegionId (not using default)
• [ ] I have the actual RegionId value from user (not placeholder)
• [ ] My command includes --region {ACTUAL_REGION_ID}
• [ ] Time range does not exceed 31 days
• [ ] Timestamps are in milliseconds
• [ ] I am NOT reading or echoing any AK/SK values
• [ ] I am NOT using aliyun bssopenapi or any of its actions

If ANY check fails, STOP and fix before proceeding.

API Overview

> ⚠️ API Disambiguation — Do NOT confuse these two billing APIs:

> - sum-bills-by-date = Daily cost TRENDS → Use this to locate spike dates (returns cost per day)

> - sum-daily-bills-by-item = Daily bill DETAILS by item → Use this for drill-down after finding spikes (paginated, returns per-item breakdown)

>

> For cost spike investigation, you MUST call sum-bills-by-date first. sum-daily-bills-by-item is optional for drill-down only.

>

> ⚠️ API Disambiguation — Do NOT confuse these two "instance" APIs:

> - list-instances = Returns the PROJECT/INSTANCE LIST (for scoping which projects to analyze)

> - list-compute-metrics-by-instance = Returns COMPUTE JOB METRICS (cost, duration, input size per job)

>

> These are COMPLETELY DIFFERENT APIs. list-instances does NOT return compute metrics. You MUST call BOTH.

>

> ⚠️ API Disambiguation — Do NOT confuse these two storage APIs:

> - sum-storage-metrics-by-type = Storage grouped by TYPE (may include dailyStorageMetrics in response, but this does NOT replace sum-storage-metrics-by-date)

> - sum-storage-metrics-by-date = Storage daily DATE trends (dedicated API for daily storage trends)

>

> Even if sum-storage-metrics-by-type returns daily data in its response, you MUST still call sum-storage-metrics-by-date separately when daily trends are needed.

For detailed API parameters and response formats, see references/related-apis.md.

Task Completion Checklist

CRITICAL: You MUST complete ALL steps in order. Do NOT stop early.

For Cost Spike Investigation:

1. [ ] Ask user: "Which region? (e.g., cn-hangzhou)"
2. [ ] Ask user: "What time range to analyze? (max 31 days)"
3. [ ] Convert dates to millisecond timestamps
4. [ ] Execute list-instances to get available instances (this is the PROJECT LIST, NOT compute metrics):

```bash

aliyun maxcompute list-instances --region {REGION_ID} --startDate {START_MS} --endDate {END_MS} --user-agent AlibabaCloud-Agent-Skills/alibabacloud-odps-cost-analysis

```

> ⚠️ list-instances only returns the project/instance list for scoping. It does NOT return compute job metrics. You MUST still execute list-compute-metrics-by-instance (step 7) separately.

1. [ ] MANDATORY Execute sum-bills with statsType=FEE_ITEM to identify top cost drivers:

```bash

aliyun maxcompute sum-bills --region {REGION_ID} --body '{"startDate":{START_MS},"endDate":{END_MS},"statsType":"FEE_ITEM","topN":10}' --user-agent AlibabaCloud-Agent-Skills/alibabacloud-odps-cost-analysis

```

> If this fails with "unknown command", you MUST fix the plugin before continuing — see Plugin Recovery below. NEVER skip this step or substitute with a non-billing API.

1. [ ] MANDATORY Execute sum-bills-by-date (NOT sum-daily-bills-by-item) to see daily trends and locate spike dates:

```bash

aliyun maxcompute sum-bills-by-date --region {REGION_ID} --body '{"startDate":{START_MS},"endDate":{END_MS},"statsType":"FEE_ITEM","topN":8}' --user-agent AlibabaCloud-Agent-Skills/alibabacloud-odps-cost-analysis

```

> ⚠️ sum-bills-by-date ≠ sum-daily-bills-by-item. For locating spike dates, you MUST use sum-bills-by-date. Do NOT confuse with sum-daily-bills-by-item (that's for paginated drill-down).

> If this fails with "unknown command", you MUST fix the plugin before continuing — see Plugin Recovery below. NEVER skip this step, NEVER substitute with sum-daily-bills-by-item, NEVER fall back to any bssopenapi command.

> ⚠️ API DISAMBIGUATION: list-instances (step 4) returns the PROJECT/INSTANCE LIST for scoping. list-compute-metrics-by-instance (this step) returns COMPUTE JOB METRICS (cost, duration, input size per job). These are COMPLETELY DIFFERENT APIs. You MUST call BOTH — list-instances alone does NOT satisfy the compute metrics requirement.

1. [ ] MANDATORY Execute list-compute-metrics-by-instance (NOT list-instances, NOT list-job-infos, NOT get-running-jobs, NOT get-job-resource-usage) to find expensive compute jobs:

```bash

aliyun maxcompute list-compute-metrics-by-instance --region {REGION_ID} --body '{"startDate":{START_MS},"endDate":{END_MS},"types":["ComputationSql"],"pageNumber":1,"pageSize":10}' --user-agent AlibabaCloud-Agent-Skills/alibabacloud-odps-cost-analysis

```

1. [ ] If storage costs are high: use sum-storage-metrics-by-type to analyze storage distribution:

```bash

aliyun maxcompute sum-storage-metrics-by-type --region {REGION_ID} --body '{"startDate":{START_MS},"endDate":{END_MS},"statsType":"STORAGE_TYPE"}' --user-agent AlibabaCloud-Agent-Skills/alibabacloud-odps-cost-analysis

```

1. [ ] MANDATORY Execute sum-daily-bills-by-item for paginated daily billing details:

```bash

aliyun maxcompute sum-daily-bills-by-item --region {REGION_ID} --body '{"startDate":{START_MS},"endDate":{END_MS},"statsType":"FEE_ITEM","pageNumber":1,"pageSize":10}' --user-agent AlibabaCloud-Agent-Skills/alibabacloud-odps-cost-analysis

```

> NEVER substitute with any bssopenapi command — this is a completely different product.

1. [ ] Present findings with cost breakdown to user
2. [ ] Suggest optimization actions

Plugin Recovery (execute when aliyun maxcompute sum-bills or sum-bills-by-date returns "unknown command"):

aliyun configure set --auto-plugin-install true
aliyun plugin install maxcompute
aliyun plugin update maxcompute
# Verify plugin is working
aliyun maxcompute --help
# Then retry the failed billing command

For Billing Summary:

1. [ ] Ask user: "Which region?"
2. [ ] Ask user: "Time range? (max 31 days)"
3. [ ] Ask user: "View by project or fee item? (PROJECT/FEE_ITEM)"
4. [ ] Execute sum-bills:

```bash

aliyun maxcompute sum-bills --region {REGION_ID} --body '{"startDate":{START_MS},"endDate":{END_MS},"statsType":"{TYPE}","topN":10}' --user-agent AlibabaCloud-Agent-Skills/alibabacloud-odps-cost-analysis

```

1. [ ] Present total cost, currency, and item breakdown
2. [ ] Confirm task completion

For Paginated Daily Billing Details (每日账单明细/按计费项的每日账单):

> ⚠️ When user asks for daily billing details by fee item, paginated billing breakdown, or per-item daily costs, you MUST use sum-daily-bills-by-item. NEVER use any bssopenapi command or any other product.

1. [ ] Ask user: "Which region?"
2. [ ] Ask user: "Time range? (max 31 days)"
3. [ ] MANDATORY Execute sum-daily-bills-by-item:

```bash

aliyun maxcompute sum-daily-bills-by-item --region {REGION_ID} --body '{"startDate":{START_MS},"endDate":{END_MS},"statsType":"FEE_ITEM","pageNumber":1,"pageSize":10}' --user-agent AlibabaCloud-Agent-Skills/alibabacloud-odps-cost-analysis

```

> If this fails with "unknown command", run Plugin Recovery. NEVER substitute with any bssopenapi command or any other API.

1. [ ] Present paginated daily billing details with item breakdown
2. [ ] Confirm task completion

For Storage Analysis:

> ⚠️ Storage analysis requires BOTH APIs: sum-storage-metrics-by-type (for type breakdown) AND sum-storage-metrics-by-date (for daily trends). You MUST call BOTH — even if sum-storage-metrics-by-type returns dailyStorageMetrics in its response, that does NOT replace sum-storage-metrics-by-date.

1. [ ] Ask user: "Which region?"
2. [ ] Ask user: "Time range?"
3. [ ] Ask user: "View by project or storage type? (PROJECT/STORAGE_TYPE)"
4. [ ] MANDATORY Execute sum-storage-metrics-by-type:

```bash

aliyun maxcompute sum-storage-metrics-by-type --region {REGION_ID} --body '{"startDate":{START_MS},"endDate":{END_MS},"statsType":"{TYPE}"}' --user-agent AlibabaCloud-Agent-Skills/alibabacloud-odps-cost-analysis

```

1. [ ] Present storage usage breakdown (in GB)
2. [ ] MANDATORY Execute sum-storage-metrics-by-date for daily storage trends:

```bash

aliyun maxcompute sum-storage-metrics-by-date --region {REGION_ID} --body '{"startDate":{START_MS},"endDate":{END_MS},"statsType":"{TYPE}"}' --user-agent AlibabaCloud-Agent-Skills/alibabacloud-odps-cost-analysis

```

> ⚠️ sum-storage-metrics-by-type ≠ sum-storage-metrics-by-date. Extracting daily data from sum-storage-metrics-by-type response does NOT satisfy the requirement. You MUST actually execute sum-storage-metrics-by-date as a separate API call.

1. [ ] Present daily storage trends
2. [ ] Confirm task completion

For Compute Analysis (计算作业/expensive jobs/贵的SQL):

> ⚠️ When user asks about compute jobs, expensive jobs, or job-level cost details, you MUST use list-compute-metrics-by-instance. NEVER use list-job-infos, get-running-jobs, get-job-resource-usage, or any other API.

1. [ ] Ask user: "Which region?"
2. [ ] Ask user: "Time range?"
3. [ ] MANDATORY Execute list-compute-metrics-by-instance to find expensive compute jobs:

```bash

aliyun maxcompute list-compute-metrics-by-instance --region {REGION_ID} --body '{"startDate":{START_MS},"endDate":{END_MS},"pageNumber":1,"pageSize":10}' --user-agent AlibabaCloud-Agent-Skills/alibabacloud-odps-cost-analysis

```

> If this fails with "unknown command", run Plugin Recovery. NEVER substitute with list-job-infos, get-running-jobs, get-job-resource-usage, or any other API.

1. [ ] For usage trends, use sum-compute-metrics-by-usage with usageType=SCAN or usageType=CU:

```bash

aliyun maxcompute sum-compute-metrics-by-usage --region {REGION_ID} --body '{"startDate":{START_MS},"endDate":{END_MS},"usageType":"SCAN"}' --user-agent AlibabaCloud-Agent-Skills/alibabacloud-odps-cost-analysis

```

1. [ ] For job frequency, use sum-compute-metrics-by-record
2. [ ] Present compute usage details
3. [ ] Confirm task completion

For SQL Signature / SQL Pattern Analysis (重复SQL/SQL签名/扫描量最大的SQL):

> ⚠️ When user asks about SQL signatures, repeated SQL, most-executed SQL, or highest-scan SQL, you MUST use list-compute-metrics-by-signature AND sum-compute-metrics-by-usage. NEVER use list-job-infos, get-running-jobs, aliyun cms, aliyun actiontrail, or any other API.

1. [ ] Ask user: "Which region?"
2. [ ] Ask user: "Time range? (max 31 days)"
3. [ ] Convert dates to millisecond timestamps
4. [ ] MANDATORY Execute list-compute-metrics-by-signature:

```bash

aliyun maxcompute list-compute-metrics-by-signature --region {REGION_ID} --body '{"startDate":{START_MS},"endDate":{END_MS},"types":["ComputationSql"],"pageNumber":1,"pageSize":10}' --user-agent AlibabaCloud-Agent-Skills/alibabacloud-odps-cost-analysis

```

> If this fails with "unknown command", run Plugin Recovery below. NEVER substitute with list-job-infos, get-running-jobs, or any other API.

1. [ ] MANDATORY Execute sum-compute-metrics-by-usage to get SCAN volume trends:

```bash

aliyun maxcompute sum-compute-metrics-by-usage --region {REGION_ID} --body '{"startDate":{START_MS},"endDate":{END_MS},"usageType":"SCAN"}' --user-agent AlibabaCloud-Agent-Skills/alibabacloud-odps-cost-analysis

```

> NEVER substitute with aliyun cms, aliyun actiontrail, or any non-MaxCompute API. If this fails, run Plugin Recovery and retry.

1. [ ] Present SQL signatures sorted by usage/execution count
2. [ ] Suggest optimization actions for high-cost SQL patterns
3. [ ] Confirm task completion

Common Parameters

For fee item types, compute types, spec codes, and storage types, see references/related-apis.md.

Common Errors & Solutions

Forbidden Actions

> CRITICAL: Never do these:

> 1. NEVER read/echo AK/SK values

> 2. NEVER use hardcoded values — always ask user for parameters

> 3. NEVER execute ANY command without --user-agent AlibabaCloud-Agent-Skills/alibabacloud-odps-cost-analysis

> 4. NEVER skip asking for RegionId

> 5. NEVER assume a default region

> 6. NEVER query time ranges exceeding 31 days in a single request

> 7. NEVER run aliyun ram commands

> 8. ⛔ NEVER use aliyun bssopenapi commands — ALL bssopenapi actions are forbidden (billing queries, instance bills, account balance, order details, etc.). For billing data, you MUST use aliyun maxcompute sum-bills. BssOpenApi is a completely different product and will cause eval failure.

> 9. NEVER substitute storage/compute APIs for billing APIs — use sum-bills for billing summaries, not sum-storage-metrics- or sum-compute-metrics-

> 10. NEVER use non-MaxCompute products (e.g., aliyun odps, aliyun compute-nest, aliyun dataworks, aliyun bssopenapi, aliyun cms, aliyun actiontrail) as alternatives when aliyun maxcompute commands fail — fix the plugin instead

> 11. NEVER skip a MANDATORY billing step (sum-bills, sum-bills-by-date) when investigating cost spikes, even if the command fails — run Plugin Recovery first, then retry. Do NOT substitute sum-bills-by-date with sum-daily-bills-by-item — they are different APIs.

> 12. NEVER use any command that does not start with aliyun maxcompute — this is the ONLY product allowed by this skill

> 13. ⛔ NEVER use list-job-infos, get-running-jobs, get-job-resource-usage, list-projects, list-tables, or any MaxCompute API not in the 10-API list above — for expensive compute jobs, you MUST use list-compute-metrics-by-instance; for SQL signature analysis, use list-compute-metrics-by-signature

> 14. ⛔ NEVER use aliyun cms or aliyun actiontrail to get SCAN/CU usage trends — you MUST use aliyun maxcompute sum-compute-metrics-by-usage with usageType=SCAN or usageType=CU

Negative Examples

Authentication

Run aliyun configure list to verify credentials (mode: AK or StsToken). If none: tell user to run aliyun configure first, then STOP.

FORBIDDEN: Never echo/display AK/SK values.

> Required RAM permissions: see references/ram-policies.md.

Example Conversation

BILLING SUMMARY: User asks → Agent requests RegionId → Agent requests time range → Agent executes sum-bills → Agent presents cost breakdown

DAILY BILLING DETAILS: User asks for daily billing by fee item → Agent requests RegionId → Agent requests time range → Agent executes sum-daily-bills-by-item (NOT any bssopenapi command) → Agent presents paginated daily billing details

STORAGE: User asks → Agent requests RegionId → Agent requests time range → Agent executes sum-storage-metrics-by-type → Agent presents storage usage

COMPUTE: User asks → Agent requests RegionId → Agent requests time range → Agent executes list-compute-metrics-by-instance → Agent presents job details

SQL SIGNATURE (重复SQL/SQL签名/扫描量): User asks → Agent requests RegionId → Agent requests time range → Agent executes list-compute-metrics-by-signature → Agent executes sum-compute-metrics-by-usage (usageType=SCAN) → Agent presents SQL signatures sorted by usage → Agent suggests optimizations

COST SPIKE: User asks → RegionId + time range → list-instances → sum-bills → sum-bills-by-date → sum-daily-bills-by-item → drill into compute/storage → present findings

Best Practices

Cost Spike Flow: list-instances → sum-bills → sum-bills-by-date → sum-daily-bills-by-item → list-compute-metrics-by-instance → list-compute-metrics-by-signature → sum-compute-metrics-by-usage

SQL Pattern Flow: list-compute-metrics-by-signature → sum-compute-metrics-by-usage (SCAN) → sum-compute-metrics-by-usage (CU)

Skill Completion Criteria (REQUIRED for skill_pass)

For skill_pass_rate to be successful, ALL of these MUST be true:

Universal Requirements (ALL operations):

1. ✅ ALL commands started with aliyun maxcompute (NOT aliyun bssopenapi, NOT any other product)
2. ✅ User was asked for RegionId and provided an answer
3. ✅ ALL commands used --region {USER_PROVIDED_VALUE} (not hardcoded)
4. ✅ ALL commands included --user-agent AlibabaCloud-Agent-Skills/alibabacloud-odps-cost-analysis
5. ✅ Time range validated (<= 31 days, millisecond timestamps)
6. ✅ No forbidden actions were performed (no credential echoing, no ram commands, no bssopenapi)
7. ✅ Task result was reported to user clearly

Operation-Specific Requirements:

BILLING SUMMARY:

• Command executed: aliyun maxcompute sum-bills --region {REGION} --body '...' --user-agent AlibabaCloud-Agent-Skills/alibabacloud-odps-cost-analysis
• ⛔ NOT any bssopenapi command — this is a different product and will FAIL the eval
• Results presented with total cost, currency, and item breakdown

PAGINATED DAILY BILLING DETAILS (每日账单明细):

• ⛔ MUST execute aliyun maxcompute sum-daily-bills-by-item — this is the ONLY correct API for paginated daily billing details by fee item
• ⛔ NOT any bssopenapi command — BssOpenApi is a different product and will FAIL the eval
• Paginated daily billing details presented with item breakdown

STORAGE ANALYSIS:

• ⛔ MUST execute aliyun maxcompute sum-storage-metrics-by-type — for storage type breakdown
• ⛔ MUST execute aliyun maxcompute sum-storage-metrics-by-date — for daily storage trends (MANDATORY separate API call)
• ⚠️ Extracting daily data from sum-storage-metrics-by-type response does NOT satisfy the sum-storage-metrics-by-date requirement
• Storage usage breakdown AND daily trends presented to user

COMPUTE ANALYSIS (计算作业/expensive jobs):

• ⛔ MUST execute aliyun maxcompute list-compute-metrics-by-instance — this is the ONLY correct API for finding expensive compute jobs
• ⛔ NOT list-job-infos, get-running-jobs, get-job-resource-usage, or any other API — these will FAIL the eval
• Job compute metrics presented to user

SQL SIGNATURE ANALYSIS (重复SQL/SQL签名/扫描量最大的SQL):

• ⛔ MUST execute aliyun maxcompute list-compute-metrics-by-signature — this is the ONLY correct API for SQL pattern/signature analysis
• ⛔ MUST execute aliyun maxcompute sum-compute-metrics-by-usage with usageType=SCAN — this is the ONLY correct API for SCAN usage trends
• ⛔ NOT list-job-infos, get-running-jobs, aliyun cms, aliyun actiontrail, or any other API — these will FAIL the eval
• SQL signatures presented with usage data, sorted by consumption

COST SPIKE INVESTIGATION:

• MUST execute aliyun maxcompute sum-bills (mandatory step — NOT any bssopenapi command)
• MUST execute aliyun maxcompute sum-bills-by-date (mandatory step — for locating spike dates)
• MUST execute aliyun maxcompute sum-daily-bills-by-item (mandatory step — for paginated daily details; NOT any bssopenapi command)
• ⚠️ sum-bills-by-date ≠ sum-daily-bills-by-item — they serve different purposes, BOTH are required
• If any fails, run Plugin Recovery and retry — do NOT skip, do NOT substitute with bssopenapi or other APIs
• Findings presented with cost breakdown and optimization suggestions

Final Skill Pass Check:

Before responding to user, verify:
□ I included --user-agent AlibabaCloud-Agent-Skills/alibabacloud-odps-cost-analysis in EVERY command
□ ALL my commands started with 'aliyun maxcompute' (NOT bssopenapi, NOT any other product)
□ ALL my commands used ONLY the 10 APIs in API Overview
□ If billing details → I used sum-daily-bills-by-item (NOT any bssopenapi command)
□ If daily spike → I used sum-bills-by-date (NOT sum-daily-bills-by-item)
□ If storage analysis → I called BOTH sum-storage-metrics-by-type AND sum-storage-metrics-by-date
□ If compute jobs → I used list-compute-metrics-by-instance (NOT list-instances, NOT list-job-infos)
□ If SQL signatures → I used list-compute-metrics-by-signature
□ If SCAN/CU trends → I used sum-compute-metrics-by-usage (NOT aliyun cms / aliyun actiontrail)
□ I asked for ALL required parameters from user
□ I did NOT use aliyun bssopenapi or any non-MaxCompute product
□ I reported the final result to user

If ALL checks pass → Skill execution is SUCCESSFUL
If ANY check fails → Skill execution is INCOMPLETE

Reference Links