get_toolGet public details for one TAAFT AI tool by slug, including deal details when an approved TAAFT partner offer exists. Use url for the TAAFT page and website_url for the external website. Preserve returned URLs exactly.
| Name | Required | Description | Default |
|---|---|---|---|
| slug | Yes | The tool slug returned by search_tools. |
| Name | Required | Description | Default |
|---|---|---|---|
| tool | Yes |
Changes observed during successful MCP inspections.
Output schema / properties / tool / properties / deal / properties / description_trial_daysAdded value: +{
+ "description": "Trial length in days extracted from deal description text, when present.",
+ "type": [
+ "integer",
+ "null"
+ ]
+}Output schema / properties / tool / properties / deal / properties / is_lifetime_planAdded value: +{
+ "description": "True when the description mentions lifetime access or one-time purchase.",
+ "type": "boolean"
+}Output schema / properties / tool / properties / deal / requiredPrevious value: -[
- "has_deal",
- "code",
- "deal_type",
- "discount_percent",
- "discount_amount",
- "credits_amount",
- "free_trial_days",
- "applies_to",
- "terms",
- "expires_at",
- "raw_text"
-]New value: +[
+ "has_deal",
+ "code",
+ "deal_type",
+ "discount_percent",
+ "discount_amount",
+ "credits_amount",
+ "free_trial_days",
+ "applies_to",
+ "terms",
+ "expires_at",
+ "description_trial_days",
+ "is_lifetime_plan",
+ "raw_text"
+]Output schema / (root)Previous value: -nullNew value: +{
+ "additionalProperties": false,
+ "properties": {
+ "tool": {
+ "additionalProperties": true,
+ "properties": {
+ "ai_id": {
+ "type": "integer"
+ },
+ "canonical_url": {
+ "type": "string"
+ },
+ "company": {
+ "type": [
+ "string",
+ "null"
+ ]
+ },
+ "country": {
+ "type": [
+ "string",
+ "null"
+ ]
+ },
+ "deal": {
+ "additionalProperties": false,
+ "properties": {
+ "applies_to": {
+ "type": [
+ "string",
+ "null"
+ ]
+ },
+ "code": {
+ "type": "string"
+ },
+ "credits_amount": {
+ "type": [
+ "number",
+ "null"
+ ]
+ },
+ "deal_type": {
+ "enum": [
+ "discount_percent",
+ "discount_amount",
+ "credits",
+ "free_trial"
+ ],
+ "type": "string"
+ },
+ "discount_amount": {
+ "type": [
+ "number",
+ "null"
+ ]
+ },
+ "discount_percent": {
+ "type": [
+ "number",
+ "null"
+ ]
+ },
+ "expires_at": {
+ "description": "Explicit expiry date in YYYY-MM-DD format, or null when no reliable date is present.",
+ "type": [
+ "string",
+ "null"
+ ]
+ },
+ "free_trial_days": {
+ "type": [
+ "integer",
+ "null"
+ ]
+ },
+ "has_deal": {
+ "type": "boolean"
+ },
+ "raw_text": {
+ "description": "Deal-related text copied from the tool description when present.",
+ "type": [
+ "string",
+ "null"
+ ]
+ },
+ "terms": {
+ "type": [
+ "string",
+ "null"
+ ]
+ }
+ },
+ "required": [
+ "has_deal",
+ "code",
+ "deal_type",
+ "discount_percent",
+ "discount_amount",
+ "credits_amount",
+ "free_trial_days",
+ "applies_to",
+ "terms",
+ "expires_at",
+ "raw_text"
+ ],
+ "type": [
+ "object",
+ "null"
+ ]
+ },
+ "description": {
+ "type": [
+ "string",
+ "null"
+ ]
+ },
+ "features": {
+ "items": {
+ "type": "string"
+ },
+ "type": "array"
+ },
+ "name": {
+ "type": [
+ "string",
+ "null"
+ ]
+ },
+ "pricing_model": {
+ "type": [
+ "string",
+ "null"
+ ]
+ },
+ "rating": {
+ "type": [
+ "number",
+ "null"
+ ]
+ },
+ "slug": {
+ "type": "string"
+ },
+ "tagline": {
+ "type": [
+ "string",
+ "null"
+ ]
+ },
+ "tags": {
+ "items": {
+ "type": "string"
+ },
+ "type": "array"
+ },
+ "task": {
+ "type": [
+ "string",
+ "null"
+ ]
+ },
+ "task_path": {
+ "items": {
+ "type": "string"
+ },
+ "type": "array"
+ },
+ "url": {
+ "type": "string"
+ },
+ "website_url": {
+ "type": [
+ "string",
+ "null"
+ ]
+ }
+ },
+ "required": [
+ "ai_id",
+ "name",
+ "slug",
+ "canonical_url",
+ "url",
+ "website_url",
+ "tagline",
+ "description",
+ "pricing_model",
+ "rating",
+ "company",
+ "country",
+ "task",
+ "task_path",
+ "tags",
+ "features",
+ "deal"
+ ],
+ "type": "object"
+ }
+ },
+ "required": [
+ "tool"
+ ],
+ "type": "object"
+}Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare this a safe, non-open-world read, so the bar is lower. The description nonetheless adds real behavioral context: deal details appear only conditionally (approved partner offer), and callers are told to 'Preserve returned URLs exactly' — a non-obvious constraint on how the output must be handled.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Three short sentences, front-loaded with the core action and the conditional deal content, then the URL handling note. Tight and readable; 'TAAFT' is repeated a few times, which is minor padding.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
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 enumerated, and annotations cover the safety profile. The description is complete enough for a single-parameter lookup, highlighting the two URL fields and the conditional deal block an agent should expect.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100% and the single slug parameter is already documented as 'The tool slug returned by search_tools', which the description merely echoes with 'by slug'. Baseline 3 is appropriate since the schema carries the parameter semantics entirely.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
Names a specific verb and resource ('Get public details for one TAAFT AI tool by slug') and scopes the payload ('including deal details when an approved TAAFT partner offer exists'). It does not, however, clarify how it relates to the sibling get_deal, which an agent could reasonably consider an alternative for the deal portion.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Usage is only implied: the schema notes the slug comes from search_tools, and the description assumes the agent already has a slug. The two sentences about url/website_url concern interpreting returned fields, not when to pick this tool over search_tools or get_deal, and no exclusions or prerequisites are stated.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Add one secure layer between your agents and this server.