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Brawl Stars

by io.github.pipeworx-io

Polymarket Arbitrage

polymarket_arbitrage
Read-onlyIdempotent

Find arbitrage opportunities on Polymarket via monotonicity violations + partition-sum checks. Call with NO args for a trending_scan of the top ~200 markets by weekly volume; pass event for the strongest per-event partition_check, or topic for a themed cross-event scan. event (recommended for a specific market): pass a Polymarket event slug like "fed-decision-may-2026" or "when-will-bitcoin-hit-150k"; walks child markets, checks date-axis / threshold-axis ordering AND computes the partition_check (sum of YES prices across mutually-exclusive legs — should ≈1; deviations >3pp emit a BUY/SELL EVERY LEG signal). topic (for cross-event scanning): pass a seed question like "Strait of Hormuz traffic returns to normal" or "Fed rate decision"; searches related events across the platform, flattens markets, runs the comparator on the union. Cross-event mode catches "...by May 31" vs "...by Jun 30" patterns that single-event misses. SEMANTIC ANCHOR: cross-event pairs require ≥0.30 Jaccard similarity on question tokens (prevents Powell-Fed-Pause being paired with Powell-DOJ-probe); skipped_low_similarity surfaces the rejected pair count. PARTITION FILTER: drops will-person-X / will-manager-Y / will-someone-else- placeholder slugs; partitions with >20% placeholder fraction return null arb signal. Response: opportunities[] (gap_pp, suggested_trade, reasoning, monotonicity violation context), and in event mode partition_check{sum_yes_prices, gap_from_1, placeholders_filtered, suggested_trade}. FILL CHECK: when the partition signal fires, arbitrage.fill_check prices it against live CLOB depth (theoretical_edge_pp_at_book vs realizable_edge_pp at 1000 shares/leg, thin_legs[]) — realizable_edge_pp ≤ 0 means the overround exists only at last-trade, not in the book; do not trade it. For custom sizing use polymarket_fill_risk.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
eventNoSingle-event mode (use this if you know the specific Polymarket event): event slug like "fed-decision-may-2026" or "when-will-bitcoin-hit-150k". Full Polymarket URLs also accepted.
topicNoCross-event mode (use this if you want to scan related events across the platform): a topic or seed question like "Fed rate decision" or "Strait of Hormuz traffic returns to normal". Tool searches Polymarket for related events and checks monotonicity across them.

Schema Changelog

Changes observed during successful MCP inspections. Dates show when Glama detected each change.

  1. Changed1 schema field changed
    • removedInput schema / anyOf
      Removed value: -[
-  {
-    "required": [
-      "event"
-    ]
-  },
-  {
-    "required": [
-      "topic"
-    ]
-  }
-]
  2. Changed3 schema fields changed
    • addedInput schema / anyOf
      Added value: +[
+  {
+    "required": [
+      "event"
+    ]
+  },
+  {
+    "required": [
+      "topic"
+    ]
+  }
+]
    • changedInput schema / properties / event / description
      Previous value: -"Single-event mode: Polymarket event slug (e.g. \"when-will-bitcoin-hit-150k\") or full URL."New value: +"Single-event mode (use this if you know the specific Polymarket event): event slug like \"fed-decision-may-2026\" or \"when-will-bitcoin-hit-150k\". Full Polymarket URLs also accepted."
    • changedInput schema / properties / topic / description
      Previous value: -"Cross-event mode: a topic or seed question. Tool searches Polymarket for related markets across separate events and checks monotonicity across them. E.g. \"Strait of Hormuz traffic returns to normal\"."New value: +"Cross-event mode (use this if you want to scan related events across the platform): a topic or seed question like \"Fed rate decision\" or \"Strait of Hormuz traffic returns to normal\". Tool searches Polymarket for related events and checks monotonicity across them."
  3. First observed

TDQS

A4.8/5.0
Behavior5/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

The description goes far beyond the annotations. It discloses the fill-check behavior and the critical caveat that 'realizable_edge_pp ≤ 0 means the overround exists only at last-trade, not in the book; do not trade it.' It also explains internal filtering (Jaccard similarity threshold, placeholder slug filtering) and that the tool may return null signals. This is rich behavioral context that the read-only/idempotent hints do not provide.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is long but exceptionally well-structured, with labeled sections (SEMANTIC ANCHOR, PARTITION FILTER, RESPONSE, FILL CHECK) that make it scannable. Every paragraph adds substantive information, and the opening sentence front-loads the purpose. The length is justified by the complexity, though it could be trimmed slightly without losing value.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Despite the absence of an output schema, the description outlines the response structure (opportunities[] with gap_pp, suggested_trade, reasoning; partition_check with sum_yes_prices, etc.). It covers all three operation modes, filtering rules, similarity thresholds, and the arbitrage fill-check caveat. For a complex tool with multiple modes and edge cases, the description is exceptionally complete.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema already covers both parameters with descriptions (100% coverage), so the baseline is 3. The description adds meaningful examples for each parameter, clarifies mode selection (e.g., 'event (recommended for a specific market)'), and explains the semantics of each mode in detail. While it doesn't introduce entirely new parameter fields, it enhances the practical understanding of how to use event vs. topic.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description opens with a precise action: 'Find arbitrage opportunities on Polymarket via monotonicity violations + partition-sum checks.' This clearly states what the tool does and its method, and the mention of 'arbitrage' distinguishes it from sibling tools like polymarket_edge_tracker (which tracks edge movements) and polymarket_fill_risk (which assesses fill risk).

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Usage guidance is explicit and prescriptive: 'Call with NO args for a `trending_scan`... pass `event` for the strongest per-event partition_check, or `topic` for a themed cross-event scan.' It also explains when to use each mode (event for a specific market, topic for cross-event), provides concrete examples, and directs to an alternative tool ('For custom sizing use polymarket_fill_risk'). This leaves no ambiguity about when to choose this tool over alternatives.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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TDQS

C2.9/5.0
Disambiguation2/5

The set mixes a general data-querying platform (Pipeworx) with a small Brawl Stars API wrapper. Within the Pipeworx cluster, ask_pipeworx, ask_pipeworx_beta, ask_pipeworx_grounded, deep_research, and validate_claim have overlapping lookup behavior, and the five polymarket_* tools cover similar prediction-market ground. The Brawl Stars tools are distinct but dwarfed, making the overall purpose confusing.

Naming Consistency3/5

Most Pipeworx tools use snake_case verb_noun patterns (ask_pipeworx, validate_claim, list_subscriptions), but Brawl Stars tools are bare nouns (brawler, club, player) and memory tools are bare verbs (remember, recall, forget). Some names are compound (generate_llms_txt, scan_competitor_ai_presence). No consistent pattern spans the whole set, though each subset is internally coherent.

Tool Count2/5

41 tools is far beyond what a Brawl Stars server needs; only about 10 are Brawl Stars-related. The bulk is a general-purpose data and prediction-market toolkit that seems bolted on. The count is not well-scoped to the server's declared name and purpose.

Completeness2/5

For Brawl Stars, the surface is thin: player and club profiles exist but there is no player search, club search, brawler-specific per-player stats, or detailed leaderboards. The Pipeworx side has broad coverage but is unrelated to the server name, so the domain is muddled and obvious Brawl Stars endpoints are missing.

Resources