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wall_map

Requires a ChainHelix API key as bearer token, or 2 cents per call paid over Binance b402 in USDT, USDC, USD1 or U on BNB Smart Chain, or over x402 in USDC on the Base network. Support and resistance price walls per chain with touch counts and strength, from hourly to weekly market structure, the same wall map the ChainHelix engine trades with: the five strongest levels on each side of price, and the nearest of them with its distance in percent. Omit chain for all nine

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
chainNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
metaNo
receiptNo
resultsYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedInput schema / x-lexicon / bundleSha256
      Previous value: -"a1c2e10fd3177d6b4d59ca78693e8fb36880165cf0f735f680dd86a510411178"New value: +"e5b4290024a229f2bdf97f8fc6a0079c3fe13b77267f41fdcffeb8b26aa1c41e"
  2. Changed1 schema field changed
    • changedInput schema / x-lexicon / bundleSha256
      Previous value: -"1eeb782ee15fe69fc80776948e0556fa6b795e210e6305935b2c97b73d955cda"New value: +"a1c2e10fd3177d6b4d59ca78693e8fb36880165cf0f735f680dd86a510411178"
  3. Changed1 schema field changed
    • changedInput schema / x-lexicon / bundleSha256
      Previous value: -"c014292cad7497ce9fd68c33345ac32cb42b672c8e77d6c749c26e162cc207e4"New value: +"1eeb782ee15fe69fc80776948e0556fa6b795e210e6305935b2c97b73d955cda"
  4. Changed2 schema fields changed
    • addedInput schema / x-lexicon
      Added value: +{
      +  "bundleSha256": "c014292cad7497ce9fd68c33345ac32cb42b672c8e77d6c749c26e162cc207e4",
      +  "name": "ChainHelix Agentic Lexicon",
      +  "resolve": "lexicon_resolve",
      +  "spec": "lexicon_spec",
      +  "version": "0.1.0"
      +}
    • addedInput schema / x-vocab
      Added value: +{
      +  "chain": "onchain.chain"
      +}
  5. Changed4 schema fields changed
    • addedOutput schema / properties / meta
      Added value: +{
      +  "additionalProperties": false,
      +  "properties": {
      +    "contentHash": {
      +      "type": "string"
      +    },
      +    "generated": {
      +      "type": "number"
      +    },
      +    "priceUsd": {
      +      "type": "number"
      +    },
      +    "validUntil": {
      +      "type": "number"
      +    }
      +  },
      +  "type": "object"
      +}
    • addedOutput schema / properties / receipt
      Added value: +{
      +  "additionalProperties": false,
      +  "properties": {
      +    "bytes": {
      +      "type": "number"
      +    },
      +    "covers": {
      +      "type": "string"
      +    },
      +    "issuedAt": {
      +      "type": "number"
      +    },
      +    "lookup": {
      +      "type": "string"
      +    },
      +    "network": {
      +      "type": [
      +        "string",
      +        "null"
      +      ]
      +    },
      +    "nonce": {
      +      "type": "string"
      +    },
      +    "seq": {
      +      "type": "number"
      +    },
      +    "settleTx": {
      +      "type": [
      +        "string",
      +        "null"
      +      ]
      +    },
      +    "sha256": {
      +      "type": "string"
      +    },
      +    "tool": {
      +      "type": [
      +        "string",
      +        "null"
      +      ]
      +    }
      +  },
      +  "type": "object"
      +}
    • addedOutput schema / properties / results / items / properties / asOf
      Added value: +{
      +  "type": [
      +    "number",
      +    "null"
      +  ]
      +}
    • addedOutput schema / properties / results / items / properties / source
      Added value: +{
      +  "type": "string"
      +}
  6. Added

TDQS

A3.6/5.0
Behavior4/5

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

No annotations are provided, so the description carries the full burden. It discloses required authentication/payment (API key or 2 cents per call via specific rails) and describes the returned data, which is valuable. It does not state read-only nature, rate limits, or error behavior, but covers the main invocation prerequisites.

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 dense but structured: payment/auth first, then purpose details, then parameter default. Every clause is informative, though the long payment sentence could be more compact. Front-loading payment before purpose slightly delays the tool's value proposition.

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

Completeness4/5

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

An output schema exists, so return values need not be detailed, yet the description still summarizes them. Auth/payment and the optional parameter's default are covered. For a single-parameter read tool, this is nearly complete; missing only rate limits or error handling.

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?

Schema coverage is 0% and the single optional 'chain' parameter has an enum of nine values. The description adds the crucial default semantic: omitting chain returns all nine chains, resolving the only ambiguity in the schema. Enum values are self-explanatory, so this is adequate.

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

Purpose4/5

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

Specifically describes support/resistance price walls with touch counts, strength, five strongest levels per side, nearest level distance, and hourly-to-weekly scope. Distinguishes itself by naming the exact output shape, but does not explicitly differentiate from siblings like prices or market_state.

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

Usage Guidelines2/5

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

No guidance on when to use this versus alternatives. Only the parameter default ('Omit chain for all nine') is provided, which is parameter semantics rather than usage context.

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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