"Understanding and Writing Unit Tests" matching MCP tools:

• audit_contentA

  RavenA

  Evaluate an array of content items (headings, prose, CTAs, labels, captions, metrics, outcomes) against UX-writing principles and deterministic heuristics. Returns a per-item verdict (pass/warn/fail) with matched principle ids, concrete issues grounded in principle text, a before→after rewrite suggestion, and an aggregate summary. Heuristics: metric items must carry a number+unit; cta/label must be action-led and ≤4 words; prose flags passive voice, jargon, and hedging; headings flag filler openers and buzzwords; captions flag duplication of any heading in the batch. Pure offline — no network or browser. Use this instead of evaluate_design when you need per-item content verdicts rather than the principle library.

  ConnectorNo auth

• view-hmr-unit-testsA

  hmrA

  The unit tests (code examples) for HMR. Always call `learn-hmr-basics` and `view-hmr-core-sources` to learn the core functionality before calling this tool. These files are the unit tests for the HMR library, which demonstrate the best practices and common coding patterns of using the library. You should use this tool when you need to write some code using the HMR library (maybe for reactive programming or implementing some integration). The response is identical to the MCP resource with the same name. Only use it once and prefer this tool to that resource if you can choose.

  ConnectorNo auth

• stateful_wallet_policy_conformanceA

  x402-data-gatewayA

  Evaluate safe standardized observations from wallet policies that track prior or concurrent requests. Use `wallet_policy_conformance` instead for one-request action shape, method, chain, token, recipient, amount, and function controls. This tool separately tests sequential cumulative limits, signed-but-unbroadcast accounting, ABI extraction, concurrent oversubscription, counter-reference failure, and application serialization. It accepts no credentials, counter values, wallet or resource IDs, signatures, transactions, or raw provider responses and does not run the provider tests itself.

  ConnectorNo auth

• update_load_test_notesA

  LoadsterA

  Replace the notes on a finished Load Test's Test Report — the only writable thing on a Load Test. Ask the user before writing: notes belong to the user, and advising on a test never requires writing them. The text sent becomes the report's entire notes, so first read the current notes with get_load_test_report and preserve the user's content in what you send.

  Connector

  Destructive

  OAuth

• convert_evmA

  FlexYield — blockchain RPC gatewayA

  Offline EVM utilities, no chain call: op='checksum' (EIP-55 checksum and validity of input=address), op='convert' (unit conversion wei…gwei…eth: input=value, from=unit, to=unit), op='selector' (4-byte selector and topic0 of input=function signature) and op='keccak' (keccak256 of input text). Use it for address hygiene and unit maths before an rpc_call. Not for verifying a signature (use verify_signature) or decoding calldata (use decode_calldata). Returns JSON: checksum → valid_address, checksummed; convert → value, from, to, result; selector → signature, selector, topic0; keccak → input, keccak256. Read-only, deterministic. Needs your API key.

  ConnectorNo auth

• convert_evmA

  FlexYield — blockchain RPC gatewayA

  Offline EVM utilities, no chain call: op='checksum' (EIP-55 checksum and validity of input=address), op='convert' (unit conversion wei…gwei…eth: input=value, from=unit, to=unit), op='selector' (4-byte selector and topic0 of input=function signature) and op='keccak' (keccak256 of input text). Use it for address hygiene and unit maths before an rpc_call. Not for verifying a signature (use verify_signature) or decoding calldata (use decode_calldata). Returns JSON: checksum → valid_address, checksummed; convert → value, from, to, result; selector → signature, selector, topic0; keccak → input, keccak256. Read-only, deterministic. Needs your API key.

  ConnectorNo auth

• enrich_providerA

  apis-ioB

  One call, pick your field groups — resolves a slug OR any identifier and returns exactly the groups you ask for, instead of chaining get_provider + get_provider_rating + get_provider_artifacts + get_provider_onboarding. Groups: profile, onboarding, artifacts, rating, insights. Understanding plan — the base groups moved with the rest of the discovery layer on 2026-08-31. Priced B2 (cross-catalog synthesis) — $0.05 per call under pay-as-you-go; included in Understanding and Influence. See apis://prices.

  ConnectorNo auth

• list_inbox_placement_testsA

  email-deliverabilityA

  List recent seed-list inbox-placement tests for the org (most recent first) with their status and Inbox/Spam/Missing scores.

  ConnectorNo auth

• get_trident_specA

  tridentA

  Returns the complete Trident 2D specification including grammar, syntax rules, coordinate system, containers, nodes, connections, shapes, and icon reference. Use this when you need deep understanding of the Trident DSL.

  ConnectorNo auth

• openaq_list_parametersA

  openaq-mcp-serverA

  Catalog of every measurable pollutant and its canonical unit: id, code, display name, unit, and a one-line description (pm25, pm10, o3, no2, so2, co, bc, and more). This is the unit-disambiguation reference — the same pollutant exists under several ids with different units (CO is id 4 in µg/m³, id 8 in ppm, id 102 in ppb), so use this to pick the exact parametersId for openaq_find_locations / openaq_get_readings / openaq_get_measurements and to interpret a reading's unit. A small bounded catalog fetched live from OpenAQ.

  ConnectorNo auth

• get_mission_statsA

  mcp-serverA

  Get aggregate statistics about missions on the HomeVisto platform. Returns total counts, status breakdown, and average bounty information. Useful for understanding platform activity.

  ConnectorNo auth

• llm_json_schema_checkA

  IA-QA — 130+ QA & Dev Tools for AI AgentsB

  Validate that an LLM JSON output matches a JSON Schema definition. Tests required fields, types, enums, nested objects, and arrays. Critical for function-calling and structured output testing.

  ConnectorNo auth

• billing.statusA

  Admin SubstituteA

  Check subscription status, plan details, billing cycle, and feature access. Useful for understanding what the business can and cannot do on their current plan.

  ConnectorNo auth

• p_valueA

  calc.engineerA

  Calculate the p-value for a z-score or t-statistic. Supports one-tailed (left or right) and two-tailed hypothesis tests using either the standard normal distribution or the Student's t-distribution when degrees of freedom are specified. Returns significance flags at the 0.01, 0.05, and 0.10 alpha levels. Essential for interpreting results from t-tests, z-tests, ANOVA post-hoc comparisons, and regression coefficients. Uses the Abramowitz & Stegun normal CDF approximation and regularized incomplete beta function for the t-distribution.

  ConnectorNo auth

• list_practice_testsA

  KeenIELTSA

  Catalog of full-length IELTS practice tests on keenielts.com — books, difficulty, and test counts for all four skills (Listening, Reading, Writing, Speaking). Full tests are taken on the website (timed, with audio players and AI band scoring), not in this conversation — point the user at the URLs. Taking tests and getting AI band scores is free.

  ConnectorNo auth

• list_testsA

  LiveVariantA

  Lists tests registered to the signed-in account, newest first, with cursor pagination and an optional case-insensitive name filter. Only exists on deployments with accounts, and only answers for an identified caller: unlike every other tool, WHOSE tests these are cannot be expressed as an argument. Each entry carries the encoded config, which inspect_test and get_stats accept directly.

  ConnectorNo auth

• list_writingA

  Khalid Ibne Hasan · PortfolioA

  Lists Khalid's writing: in-site notes and Substack essays, merged and sorted newest first. Each entry has a title, source, date, and URL.

  ConnectorNo auth

• public-postsA

  SDUK Studio DiscoveryA

  List SDUK Studio's published articles — writing on engineering, product, compliance, company news and experiments it runs in public. Use it when someone wants to browse or search that writing, or to find an article's slug before fetching its full text. Returns titles, excerpts and dates only, never article bodies.

  ConnectorNo auth

• receipt_item_price_historyA

  vokseA

  How the unit price of a product moved over time, from receipt photos: per month (default) or week, quantity-weighted average plus min/max per base unit (kg, l, unit) and the merchants. Answers "how much has the price of apples gone up this year". Compare the first and last buckets and say the unit; if there are fewer than two buckets say there is not enough history.

  ConnectorOAuth

• suburbs_finder_fieldsA

  Microburbs Australian Property DataC

  Every field you can filter / sort on, with its label and unit. 0c. Houses and units are separate keys: the `unit`-prefixed ones (`unitMedianPrice`, `unitGrossYield`, `unitMedianRent`, …) are the apartment market, the unprefixed market keys are houses, and both can be filtered in the same query. Unit fields are NOT nationally populated — they only exist where a suburb has a unit market (roughly 13-54% of suburbs depending on the field), so a suburb with no unit market simply won't match a unit filter. **Free.**

  ConnectorNo auth

• web_snapshotA

  Robot Actions — Remote Device ControlA

  Accessibility tree of the DESKTOP grid browser page (by pageId), as text — for finding elements and understanding layout. Not a device: the equivalent for a phone or tablet is webpage_snapshot (by udid).

  ConnectorOAuth