03 / Scorecard / Feature Flags & Config

Split

Name: Split Agent Readiness Scorecard
Item: Split
Rating: 48
Author: Headless Index pipeline (auto)

Headless Index

48/100

denominator 80

JAIRF

N/A

Verified

MAY 21, 2026

Methodology v1 · JAIRF v1.0.0

Editorial verdict

Split is partially headless and partly UI-led. The Headless Index thesis-fit score of 48/100 puts it mid-table on the index, and JAIRF is recorded as N/A for this vendor because no public OpenAPI specification was reachable for the open-source scorer. In practice, vendors at this tier are partly machine-consumable: the core flows are reachable through code but several adjacent surfaces still expect a human at a dashboard, and the rest of this verdict explains where Split lands inside that pattern. On the API surface, the question is whether the API is the product or a layer beneath the dashboard. Split (now Harness FF after acquisition; this entry tracks the standalone Split platform). REST API plus SDKs across web, mobile, and server-side languages. The product was experiment-focused feature flags with statistical impact analysis.^[1] Schema observability is the related test: can an agent introspect the contract from cold, or does it have to read prose documentation to do so? REST documented at help.split.io. SDKs are well-maintained. Schema discoverability is solid.^[2] An agent can drive parts of this product, but not all of it: integrators should plan for human-in-the-loop checkpoints where the headless surface stops short. On headless operability: Splits (flags), segments, environments, attributes, and metrics are programmable. The Split CLI plus a Terraform provider give shell and IaC paths.^[3] On the MCP and agent-integration axis, which is the fastest-moving criterion in the index: No first-party Split MCP server. The Harness acquisition has not yet extended to MCP integration.^[4] Event posture closes the loop: an agent that cannot react to state changes is reduced to polling. On webhooks and events, the docs crawler did not locate a webhooks reference page or events catalog. Editorial review should confirm whether the vendor publishes events at all, and if so whether signing and replay are documented. Net assessment: integrators can build agent flows against Split, but the rough edge to plan around is MCP posture^[5]. Expect to wrap missing pieces in bespoke glue or accept human-in-the-loop checkpoints. Workable but requires scaffolding.

Verdict by Headless Index pipeline (auto)

// AI-drafted from the evidence layer. Editorial review pending.

Scores

Scorecard detail

Headless Index · 5 sub-criteria

API-first design intent16/20

scored

Split (now Harness FF after acquisition; this entry tracks the standalone Split platform). REST API plus SDKs across web, mobile, and server-side languages. The product was experiment-focused feature flags with statistical impact analysis.

signals (6)

+AI review appliedReviewer: Editorial review on 2026-05-20
−OpenAPI specNot found across 34 probe paths
·GraphQL endpointDiscovered at https://www.split.io/graphql, introspection disabled or scoped
+SDKs maintained20 (dotnet, go, java, javascript, kotlin, php, python, ruby, swift, typescript); top by stars: splitio/javascript-client (49 stars)
+SDK recency6 of 20 SDK repos pushed within 30 days (most recent SDK commit: 2026-05-19)
+npm weekly downloads73.2k across published packages; top: @splitsoftware/splitio-browserjs @ 45.3k/week

cite (1)

ai_review_browser.auth@2026-05-20

Headless operation8/20

scored

Splits (flags), segments, environments, attributes, and metrics are programmable. The Split CLI plus a Terraform provider give shell and IaC paths.

signals (9)

+AI review appliedReviewer: Editorial review on 2026-05-20
−API operations exposedNo OpenAPI spec; operations count unknown
·Docs pages crawled0 pages (crawler: none)
·Auth schemes documentedAuth documentation page not reached by crawler
·Setup / quickstart docsNot reached by crawler
·Billing docsNot reached by crawler
·Teams / org docsNot reached by crawler
·CLI docsNot reached by crawler
·Schema / data model docsNot reached by crawler

cite (1)

ai_review_browser.topics_found@2026-05-20

MCP & agent posture0/20

scored

No first-party Split MCP server. The Harness acquisition has not yet extended to MCP integration.

signals (4)

+AI review appliedReviewer: Editorial review on 2026-05-20
−Official MCP serverNone found in vendor's GitHub org or the official MCP registry
−Community MCP serversNone found
+Agent-friendly SDKs8 TS/JS SDKs available; top: javascript-client (124/week downloads)

cite (3)

mcp.registry_query@2026-05-19
mcp.github_search_query@2026-05-19
github.sdks@2026-05-19

Schema observability14/20

scored

REST documented at help.split.io. SDKs are well-maintained. Schema discoverability is solid.

signals (3)

+AI review appliedReviewer: Editorial review on 2026-05-20
−OpenAPINot discovered across 34 standard probe paths
·GraphQL introspectionGraphQL endpoint at https://www.split.io/graphql but introspection is disabled, scoped, or behind authentication

cite (1)

ai_review_browser.schema@2026-05-20

Webhooks & eventsUnknown

Unknown

Split webhooks deliver flag-change and impression events. Catalog covers feature-flag plus impact-analysis use cases.

signals (2)

+AI review appliedReviewer: Editorial review on 2026-05-20
·Webhook docs pageNot reached by crawler within budget (0 pages crawled). Cannot confirm whether vendor offers webhooks.

cite (1)

docs.pages_crawled@2026-05-19

JAIRF · 6 dimensions

JAIRF · N/A

This vendor does not publish a public OpenAPI specification. JAIRF cannot be computed. The Headless Index score and editorial verdict carry the readiness assessment.

No public OpenAPI specification discovered during collection

Band rationale:C band: scores 40-75 range

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Calibration

How THI compares to external scorers

Source	Score	Measures	Last checked
Fern Agent Score	not found	Documentation completeness and SDK shape (~22 checks)	—
CLIRank Agent Friendliness	0	CLI readiness, docs quality, and overall agent affordances	—
Cloudflare Is It Agent Ready?	blocked	Cloudflare's manual agent-readiness heuristic per vendor URL	—
Jentic Scorecard	n a	JAIRF-based scorecard requiring a public OpenAPI specification	—

THI 48 vs external median 0, delta +48Methodology delta noted — see verdict

THI display 48 vs external median 0 (delta +48). Deviation > 25 points: editor should review whether THI methodology is over-strict or external scorers are over-generous for this vendor.

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