Skip to main content
Glama
Sign In

ChainHelix for Machines

by io.chainhelix.mcp
OverviewDiscussionsAdmin

freshness

Read-only

Free check before you pay: for every data tool, the content hash and validUntil of its current default result (all chains). If the hash matches what you already hold, nothing changed and there is nothing to buy. A tool that needs arguments has no default result and is listed with requiresArguments; its paid answer carries its own meta.contentHash. Optional name for one tool

Input Schema

NameRequiredDescriptionDefault
nameNoone data tool to check; omit for all (also accepted as: tool)

Output Schema

NameRequiredDescriptionDefault
noteNo
toolsYes
checkedAtYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedInput schema / x-lexicon / bundleSha256
      Previous value: -"670f7504e3de5031beccee25a2d24e4515f68b893295f6d5b0d3a0665498b2c9"New value: +"25cc80db6d8e9eac73d47a50f7ad6333a21f1972d008a8fed0159de8bfb4b519"
  2. Changed2 schema fields changed
    • changedInput schema / x-lexicon / bundleSha256
      Previous value: -"e5b4290024a229f2bdf97f8fc6a0079c3fe13b77267f41fdcffeb8b26aa1c41e"New value: +"670f7504e3de5031beccee25a2d24e4515f68b893295f6d5b0d3a0665498b2c9"
    • changedInput schema / x-lexicon / version
      Previous value: -"0.1.0"New value: +"0.2.0"
  3. Changed1 schema field changed
    • addedInput schema / additionalProperties
      Added value: +false
  4. Changed1 schema field changed
    • changedInput schema / x-lexicon / bundleSha256
      Previous value: -"a1c2e10fd3177d6b4d59ca78693e8fb36880165cf0f735f680dd86a510411178"New value: +"e5b4290024a229f2bdf97f8fc6a0079c3fe13b77267f41fdcffeb8b26aa1c41e"
  5. Changed1 schema field changed
    • changedInput schema / x-lexicon / bundleSha256
      Previous value: -"1eeb782ee15fe69fc80776948e0556fa6b795e210e6305935b2c97b73d955cda"New value: +"a1c2e10fd3177d6b4d59ca78693e8fb36880165cf0f735f680dd86a510411178"
  6. Changed1 schema field changed
    • changedInput schema / x-lexicon / bundleSha256
      Previous value: -"c014292cad7497ce9fd68c33345ac32cb42b672c8e77d6c749c26e162cc207e4"New value: +"1eeb782ee15fe69fc80776948e0556fa6b795e210e6305935b2c97b73d955cda"
  7. Changed4 schema fields changed
    • addedInput schema / properties / name / description
      Added value: +"one data tool to check; omit for all (also accepted as: tool)"
    • addedInput schema / x-aliases
      Added value: +{
+  "name": [
+    "Name",
+    ":name",
+    "_name",
+    "NAME",
+    "tool"
+  ]
+}
    • 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: +{
+  "name": "agent.name"
+}
  8. Changed3 schema fields changed
    • addedOutput schema / properties / tools / items / properties / note
      Added value: +{
+  "type": [
+    "string",
+    "null"
+  ]
+}
    • addedOutput schema / properties / tools / items / properties / reason
      Added value: +{
+  "type": [
+    "string",
+    "null"
+  ]
+}
    • addedOutput schema / properties / tools / items / properties / requiresArguments
      Added value: +{
+  "items": {
+    "type": "string"
+  },
+  "type": [
+    "array",
+    "null"
+  ]
+}
  9. Changed1 schema field changed
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
+  "properties": {
+    "checkedAt": {
+      "type": "number"
+    },
+    "note": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "tools": {
+      "items": {
+        "additionalProperties": true,
+        "properties": {
+          "cached": {
+            "type": [
+              "boolean",
+              "null"
+            ]
+          },
+          "contentHash": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "error": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "generated": {
+            "type": [
+              "number",
+              "null"
+            ]
+          },
+          "name": {
+            "type": "string"
+          },
+          "priceUsd": {
+            "type": [
+              "number",
+              "null"
+            ]
+          },
+          "validUntil": {
+            "type": [
+              "number",
+              "null"
+            ]
+          }
+        },
+        "type": "object"
+      },
+      "type": "array"
+    }
+  },
+  "required": [
+    "checkedAt",
+    "tools"
+  ],
+  "type": "object"
+}
  10. Added

TDQS

A3.9/5.0
Behavior4/5

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

Beyond readOnlyHint=true, it discloses the free/no-cost behavior and explains how tools needing arguments are represented (requiresArguments) and where a hash lives for paid answers (meta.contentHash). This is meaningful context an agent would not get from annotations alone.

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?

Front-loads the core pitch ('Free check before you pay') and each subsequent sentence adds a distinct piece of information. Slightly dense but no wasted sentences.

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?

With an output schema present, return values needn't be spelled out, and the description covers the key edge cases (requiresArguments, per-answer contentHash). It gives an agent enough to call correctly, though it could note it covers 'all chains' scope more explicitly relative to filtered siblings.

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

Parameters3/5

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

Schema coverage is 100% and the schema already documents 'omit for all,' so the description's 'Optional name for one tool' adds little. It does clarify the omit-for-all semantics implicitly, keeping it at baseline rather than below.

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?

States a specific verb (check) and resource (freshness/content hash + validUntil of default results), and frames the value proposition ('free check before you pay'). It clearly differs from paid data siblings, though it never names a specific sibling tool it substitutes for.

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

Usage Guidelines4/5

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

Gives a strong when-to-use rule: check this before buying, and if the hash matches, 'there is nothing to buy.' It also explains the requiresArguments edge case for tools without default results. It stops short of explicitly naming a sibling alternative.

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

All ChainHelix for Machines toolsInspect
Try in Browser
One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

Glama MCP Gateway

Add one secure layer between your agents and this server.

Resources