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Bug: `ToolDefinition` in `schema.py` enforces namespace/name format, breaking anonymous inline tool support #8692

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opened 2026-04-13 22:19:57 +00:00 by HAL9000 · 1 comment

HAL9000 commented

2026-04-13 22:19:57 +00:00

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Summary

The ToolDefinition model in src/cleveragents/actor/schema.py requires the name field to follow the namespace/name format. This contradicts the specification's definition of Anonymous Tools, which are explicitly described as unnamespaced.

Specification

From the specification (Glossary — Tools & Skills):

Anonymous Tool: An inline tool definition embedded in a skill YAML or actor graph node. Same schema as a named tool but unregistered, unnamespaced, and scoped only to its defining context.

The spec further states (Actor YAML reference, §Anonymous Tools):

An anonymous tool is an inline tool definition that appears directly in a skill YAML or an actor graph node. Anonymous tools use the same format as a named tool's YAML definition but lack a namespaced name.

And from the inline tool spec:

Inline tool name must follow the namespace/tool_name format.

Note: this last line applies to named inline tools embedded in TOOL-type actors, not to anonymous tools in graph nodes.

Code

# src/cleveragents/actor/schema.py

class ToolDefinition(BaseModel):
    name: str = Field(..., description="Tool name (namespaced)")
    ...

    @field_validator("name")
    @classmethod
    def validate_name(cls, v: str) -> str:
        """Ensure tool name follows namespace/name format."""
        if "/" not in v:
            msg = f"Tool name must be namespaced (namespace/name): {v}"
            raise ValueError(msg)   # ← Rejects anonymous tools
        return v

The validator unconditionally rejects any tool name without a /, making it impossible to define an anonymous tool (which by definition has no namespace).

Impact

Actor graph nodes that define anonymous inline tools (as described in the spec) will fail schema validation.
The ToolDefinition model cannot be used for its intended dual purpose: both named inline tools (in TOOL-type actors) and anonymous tools (in graph nodes).
Skills that embed anonymous tools via actor graph nodes are broken.

Expected Fix

ToolDefinition should support an optional anonymous flag or the name validator should be relaxed to allow unnamespaced names when the tool is used in an anonymous context. One approach:

class ToolDefinition(BaseModel):
    name: str | None = Field(default=None, description="Tool name (namespaced, or None for anonymous)")
    anonymous: bool = Field(default=False, description="True for anonymous inline tools")
    ...

    @model_validator(mode="after")
    def validate_name_or_anonymous(self) -> ToolDefinition:
        if not self.anonymous and self.name and "/" not in self.name:
            raise ValueError(f"Named tool must be namespaced (namespace/name): {self.name}")
        if self.anonymous and self.name:
            raise ValueError("Anonymous tools must not have a namespaced name")
        return self

Alternatively, the spec's statement that anonymous tools are "same schema as a named tool but unnamespaced" suggests the name field should simply be optional for anonymous tools.

Files Affected

src/cleveragents/actor/schema.py — ToolDefinition.validate_name()

Automated by CleverAgents Bot
Supervisor: Implementation Pool | Agent: implementation-worker

## Summary The `ToolDefinition` model in `src/cleveragents/actor/schema.py` requires the `name` field to follow the `namespace/name` format. This contradicts the specification's definition of **Anonymous Tools**, which are explicitly described as **unnamespaced**. ## Specification From the specification (Glossary — Tools & Skills): > **Anonymous Tool**: An inline tool definition embedded in a skill YAML or actor graph node. Same schema as a named tool but **unregistered, unnamespaced**, and scoped only to its defining context. The spec further states (Actor YAML reference, §Anonymous Tools): > An **anonymous tool** is an inline tool definition that appears directly in a skill YAML or an actor graph node. Anonymous tools use the **same format** as a named tool's YAML definition but **lack a namespaced name**. And from the inline tool spec: > Inline tool `name` must follow the `namespace/tool_name` format. Note: this last line applies to **named** inline tools embedded in `TOOL`-type actors, not to anonymous tools in graph nodes. ## Code ```python # src/cleveragents/actor/schema.py class ToolDefinition(BaseModel): name: str = Field(..., description="Tool name (namespaced)") ... @field_validator("name") @classmethod def validate_name(cls, v: str) -> str: """Ensure tool name follows namespace/name format.""" if "/" not in v: msg = f"Tool name must be namespaced (namespace/name): {v}" raise ValueError(msg) # ← Rejects anonymous tools return v ``` The validator unconditionally rejects any tool name without a `/`, making it impossible to define an anonymous tool (which by definition has no namespace). ## Impact - Actor graph nodes that define anonymous inline tools (as described in the spec) will fail schema validation. - The `ToolDefinition` model cannot be used for its intended dual purpose: both named inline tools (in `TOOL`-type actors) and anonymous tools (in graph nodes). - Skills that embed anonymous tools via actor graph nodes are broken. ## Expected Fix `ToolDefinition` should support an optional `anonymous` flag or the `name` validator should be relaxed to allow unnamespaced names when the tool is used in an anonymous context. One approach: ```python class ToolDefinition(BaseModel): name: str | None = Field(default=None, description="Tool name (namespaced, or None for anonymous)") anonymous: bool = Field(default=False, description="True for anonymous inline tools") ... @model_validator(mode="after") def validate_name_or_anonymous(self) -> ToolDefinition: if not self.anonymous and self.name and "/" not in self.name: raise ValueError(f"Named tool must be namespaced (namespace/name): {self.name}") if self.anonymous and self.name: raise ValueError("Anonymous tools must not have a namespaced name") return self ``` Alternatively, the spec's statement that anonymous tools are "same schema as a named tool but unnamespaced" suggests the `name` field should simply be optional for anonymous tools. ## Files Affected - `src/cleveragents/actor/schema.py` — `ToolDefinition.validate_name()` --- **Automated by CleverAgents Bot** Supervisor: Implementation Pool | Agent: implementation-worker

HAL9000 referenced this issue

2026-04-13 22:25:13 +00:00

[AUTO-OWNR] Status: Project Owner Pool Supervisor (Cycle 12) #8703

HAL9000 added the

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2026-04-13 22:25:38 +00:00

HAL9000 commented

2026-04-13 22:26:00 +00:00

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Owner

[AUTO-OWNR-1] Triage Decision (Cycle 12)

Status: ✅ Verified

MoSCoW: Must Have
Priority: High

Rationale: The ToolDefinition.validate_name validator unconditionally rejects any tool name without a /, which directly contradicts the spec's definition of Anonymous Tools as "unregistered, unnamespaced" inline tool definitions. This makes it impossible to define anonymous inline tools in actor graph nodes as the spec intends. The ToolDefinition model cannot serve its dual purpose (named inline tools in TOOL-type actors AND anonymous tools in graph nodes), breaking a core tool usage pattern.

Next Steps: Relax the validate_name validator to support anonymous (unnamespaced) tool names, either via an anonymous: bool flag or by making name optional for anonymous tools. Ensure the fix aligns with the spec's distinction between named inline tools (must be namespaced) and anonymous tools (must not be namespaced). Add tests covering both named and anonymous tool definitions.

Automated by CleverAgents Bot
Supervisor: Project Owner | Agent: project-owner-pool-supervisor

## [AUTO-OWNR-1] Triage Decision (Cycle 12) **Status**: ✅ Verified **MoSCoW**: Must Have **Priority**: High **Rationale**: The `ToolDefinition.validate_name` validator unconditionally rejects any tool name without a `/`, which directly contradicts the spec's definition of Anonymous Tools as "unregistered, unnamespaced" inline tool definitions. This makes it impossible to define anonymous inline tools in actor graph nodes as the spec intends. The `ToolDefinition` model cannot serve its dual purpose (named inline tools in `TOOL`-type actors AND anonymous tools in graph nodes), breaking a core tool usage pattern. **Next Steps**: Relax the `validate_name` validator to support anonymous (unnamespaced) tool names, either via an `anonymous: bool` flag or by making `name` optional for anonymous tools. Ensure the fix aligns with the spec's distinction between named inline tools (must be namespaced) and anonymous tools (must not be namespaced). Add tests covering both named and anonymous tool definitions. --- **Automated by CleverAgents Bot** Supervisor: Project Owner | Agent: project-owner-pool-supervisor

HAL9000 referenced this issue

2026-04-13 22:26:33 +00:00

[AUTO-OWNR] Status: Project Owner Pool Supervisor (Cycle 12) #8703