Skip to main content
Glama
Unleash

Unleash MCP Server

Official
by Unleash

set_flag_rollout

Configure the rollout percentage and variants for a feature flag's flexible rollout strategy in a given environment, without enabling the flag.

Instructions

Configure or update a flexibleRollout strategy for a feature flag environment with an optional rollout percentage and variants. This does NOT enable the feature; call toggle_flag_environment to turn environments on or off.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
projectIdNoProject ID where the feature flag resides (optional if UNLEASH_DEFAULT_PROJECT is set)
featureNameYesFeature flag name
environmentYesTarget environment
rolloutPercentageYesRollout percentage (0-100)
groupIdNoGroup ID for stickiness bucketing (defaults to the feature name)
stickinessNoStickiness field (defaults to "default")
titleNoOptional descriptive title for the strategy
disabledNoDisable the strategy (defaults to false)
variantsNoOptional list of strategy-level variants
Behavior3/5

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

With no annotations provided, the description carries the full burden. It indicates a mutation (configures/updates) and clarifies non-enablement. However, it omits details on whether the strategy is replaced or merged, permission requirements, or error conditions.

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

Conciseness5/5

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

Two sentences, each essential: first states the core action, second clarifies a key constraint. No unnecessary words. Excellent front-loading.

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

Completeness3/5

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

Given 9 parameters, no output schema, and no annotations, the description is too brief. It does not explain how variants are used, what constitutes a 'flexibleRollout strategy', or return behavior. Adequate but incomplete.

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

Parameters2/5

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

Schema coverage is 100%, but the description inaccurately describes rolloutPercentage as 'optional' when it is required in the schema. This misstatement could mislead AI agents. The description adds no other significant parameter semantics beyond the schema.

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 clearly identifies the tool's action as configuring/updating a flexibleRollout strategy for a feature flag environment. It also explicitly states what it does NOT do (enable the feature), which distinguishes it from sibling tools like toggle_flag_environment.

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?

The description provides explicit guidance on when not to use (for enabling features) and directs users to toggle_flag_environment instead. However, it does not address other use cases or alternatives among siblings like remove_flag_strategy.

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

Install Server

Other Tools

Latest Blog Posts

MCP directory API

We provide all the information about MCP servers via our MCP API.

curl -X GET 'https://glama.ai/api/mcp/v1/servers/Unleash/unleash-mcp'

If you have feedback or need assistance with the MCP directory API, please join our Discord server