How YYLO’s scores are calculated
The full audit trail, recomputed from the verdict data at build time through the same code that produced the leaderboard: verdict × quality × story weight per cell, cells sum to dimension scores, dimensions blend into the PA Score. Every number on the product page is reproducible from this page alone; for why the formula looks like this, see the methodology.
verdict factors: full ×1.0 · partial ×0.6 · disputed ×0.3 · none ×0.0 · n/a excluded from both sides · cell points = weight × quality × factor · cell max = weight × 10
PA Score29/100
Agent-ready 20.5 × 0.30 = 6.15
API quality 10.0 × 0.20 = 2.00
Openness 59.0 × 0.20 = 11.80
Built-in AI 17.3 × 0.15 = 2.60
Automation 42.5 × 0.15 = 6.38
(6.15 + 2.00 + 11.80 + 2.60 + 6.38) ÷ (0.30 + 0.20 + 0.20 + 0.15 + 0.15) = 28.92 ÷ 1.00 = 28.9
Scores are stored to 1 decimal; the product page’s pills round to whole numbers for display. Each dimension below shows the stories, verdicts, and cited evidence behind its number.
Agent-ready20.5/100×0.30 of the PA blend
Outside-in: can YOUR agent reach and drive this product — API, MCP, CLI, headless runs, agent docs.
Point an agent at llms.txt or agent-oriented docsweight 2
2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max
- [probe] https://yylo.dev/llms.txt“PROBE llms.txt: HTTP 404 at https://yylo.dev/llms.txt”
- [probe] https://yylo.dev/docs/yylo.md“PROBE docs-md: HTTP 404 at https://yylo.dev/docs/yylo.md”
- [probe] https://yylo.dev/openapi.json“PROBE openapi: all candidate paths 404 (https://yylo.dev/openapi.json, https://yylo.dev/swagger.json, https://yylo.dev/api/openapi.json, https://yylo.dev/.well-known/openapi.json)”
Run the product headlessly / in CI for automationweight 2
2 (weight) × 7 (quality) × 1.0 (full) = 14.0 of 20 max
- [claimed-docs] https://yylo.dev/docs/yylo“npm install -g @yylo/cli@0.2.2 yylo init --task "Describe one verifiable outcome" --subagent claude”
- [claimed-docs] https://yylo.dev/docs/yylo“`yy loop` repeats arbitrary shell commands sequentially.”
- [claimed-docs] https://yylo.dev/docs/yylo/scripts/parallel-runner“Bounded concurrent fan-out for independent kanban tasks, data items, or complete commands—with structured evidence for every item.”
- [claimed-docs] https://yylo.dev/docs/yylo/scripts/run-until-completion“Repeat bounded YYLO iterations until no open kanban work remains.”
- [github] https://github.com/yylo-dev/yylo“A successful run prints the installed YYLO version, initializes `.juno_task/`, then emits a watch receipt with `"state":"COMPLETED"`, `"exit_code":0`, and nonzero `log_bytes`.”
- [github] https://github.com/yylo-dev/yylo“YYLO is a command-line orchestrator for coding agents, repeatable workflows, and receipt-backed repository changes. It is for developers who want a quick agent loop and for project operators who need typed task, validation, merge, and release-readiness boundaries.”
- [probe] https://www.npmjs.com/package/@yylo/cli“PROBE runtime (recorded 2026-09-14): `npm view @yylo/cli name version bin` — the official CLI is live on the public npm registry (@yylo/cli 0.2.2) and publishes the documented launchers as package bins: yylo, yy, ypl, feedback-yylo. Registry metadata only; no package code executed.”
Plug MCP servers into this product so it can use their toolsweight 3
3 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 30 max
no evidence cited — the verdict rests on absence of evidence, re-checked on refresh
Connect an agent via an official MCP serverweight 3
3 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 30 max
no evidence cited — the verdict rests on absence of evidence, re-checked on refresh
Use an official CLIweight 2
2 (weight) × 8 (quality) × 1.0 (full) = 16.0 of 20 max
- [claimed-docs] https://yylo.dev/docs/yylo“npm install -g @yylo/cli@0.2.2 yylo init --task "Describe one verifiable outcome" --subagent claude”
- [claimed-docs] https://yylo.dev/docs/yylo“Start hydrates an exact-base task worktree. Preflight is read-only, finish queues the committed candidate”
- [claimed-docs] https://yylo.dev/docs/yylo“yy ledger create "Validate recovery" --status todo --tags auth yy ledger ready --sort asc yy ledger get TASK_ID”
- [github] https://github.com/yylo-dev/yylo“YYLO is a command-line orchestrator for coding agents, repeatable workflows, and receipt-backed repository changes. It is for developers who want a quick agent loop and for project operators who need typed task, validation, merge, and release-readiness boundaries.”
- [github] https://github.com/yylo-dev/yylo“`task start` freezes the protected target SHA, creates a dedicated branch/worktree, and completes configured dependency hydration before reporting `WORKING`.”
- [probe] https://www.npmjs.com/package/@yylo/cli“PROBE runtime (recorded 2026-09-14): `npm view @yylo/cli name version bin` — the official CLI is live on the public npm registry (@yylo/cli 0.2.2) and publishes the documented launchers as package bins: yylo, yy, ypl, feedback-yylo. Registry metadata only; no package code executed.”
- [probe] https://github.com/yylo-dev/yylo/blob/main/LICENSE“PROBE runtime (recorded 2026-09-14): `curl -s https://raw.githubusercontent.com/yylo-dev/yylo/HEAD/LICENSE | head -3` returns 'MIT License / Copyright (c) 2026 JUNO AI INC.' — the full CLI source repo is public under MIT.”
Drive the product through a documented public APIweight 3
3 (weight) × 5 (quality) × 0.6 (partial) = 9.0 of 30 max
- [claimed-docs] https://yylo.dev/docs/yylo“npm install -g @yylo/cli@0.2.2 yylo init --task "Describe one verifiable outcome" --subagent claude”
- [claimed-docs] https://yylo.dev/docs/yylo“`yy loop` repeats arbitrary shell commands sequentially.”
- [claimed-docs] https://yylo.dev/docs/yylo“Save the same contract as YAML for a reusable workflow.”
- [claimed-docs] https://yylo.dev/docs/yylo“yy ledger create "Validate recovery" --status todo --tags auth yy ledger ready --sort asc yy ledger get TASK_ID”
- [probe] https://yylo.dev/llms.txt“PROBE llms.txt: HTTP 404 at https://yylo.dev/llms.txt”
- [probe] https://yylo.dev/docs/yylo.md“PROBE docs-md: HTTP 404 at https://yylo.dev/docs/yylo.md”
- [probe] https://yylo.dev/openapi.json“PROBE openapi: all candidate paths 404 (https://yylo.dev/openapi.json, https://yylo.dev/swagger.json, https://yylo.dev/api/openapi.json, https://yylo.dev/.well-known/openapi.json)”
- [probe] https://www.npmjs.com/package/@yylo/cli“PROBE runtime (recorded 2026-09-14): `npm view @yylo/cli name version bin` — the official CLI is live on the public npm registry (@yylo/cli 0.2.2) and publishes the documented launchers as package bins: yylo, yy, ypl, feedback-yylo. Registry metadata only; no package code executed.”
Issue scoped/least-privilege API credentials for an agentweight 2
n/a — not applicable to this product: excluded from numerator and denominator
no evidence cited — the verdict rests on absence of evidence, re-checked on refresh
Build against official SDKsweight 2
2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max
- [probe] https://yylo.dev/llms.txt“PROBE llms.txt: HTTP 404 at https://yylo.dev/llms.txt”
- [probe] https://yylo.dev/docs/yylo.md“PROBE docs-md: HTTP 404 at https://yylo.dev/docs/yylo.md”
- [probe] https://yylo.dev/openapi.json“PROBE openapi: all candidate paths 404 (https://yylo.dev/openapi.json, https://yylo.dev/swagger.json, https://yylo.dev/api/openapi.json, https://yylo.dev/.well-known/openapi.json)”
- [probe] https://www.npmjs.com/package/@yylo/cli“PROBE runtime (recorded 2026-09-14): `npm view @yylo/cli name version bin` — the official CLI is live on the public npm registry (@yylo/cli 0.2.2) and publishes the documented launchers as package bins: yylo, yy, ypl, feedback-yylo. Registry metadata only; no package code executed.”
- [probe] https://github.com/yylo-dev/yylo/blob/main/LICENSE“PROBE runtime (recorded 2026-09-14): `curl -s https://raw.githubusercontent.com/yylo-dev/yylo/HEAD/LICENSE | head -3` returns 'MIT License / Copyright (c) 2026 JUNO AI INC.' — the full CLI source repo is public under MIT.”
Subscribe to events via webhooksweight 2
2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max
- [claimed-docs] https://yylo.dev/docs/yylo/scripts/integrations“Bring Slack messages or GitHub issues into kanban and return completed responses to their source thread.”
- [probe] https://yylo.dev/openapi.json“PROBE openapi: all candidate paths 404 (https://yylo.dev/openapi.json, https://yylo.dev/swagger.json, https://yylo.dev/api/openapi.json, https://yylo.dev/.well-known/openapi.json)”
Agent-ready = 39.0 ÷ 190 × 100 = 20.5
API quality10.0/100×0.20 of the PA blend
The programmable surface once an agent is there — machine-readable spec, interactive docs, sandbox, versioning discipline.
Explore an interactive API reference with runnable examplesweight 2
2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max
- [probe] https://yylo.dev/llms.txt“PROBE llms.txt: HTTP 404 at https://yylo.dev/llms.txt”
- [probe] https://yylo.dev/docs/yylo.md“PROBE docs-md: HTTP 404 at https://yylo.dev/docs/yylo.md”
- [probe] https://yylo.dev/openapi.json“PROBE openapi: all candidate paths 404 (https://yylo.dev/openapi.json, https://yylo.dev/swagger.json, https://yylo.dev/api/openapi.json, https://yylo.dev/.well-known/openapi.json)”
Download a machine-readable API spec (OpenAPI or equivalent)weight 2
2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max
- [probe] https://yylo.dev/llms.txt“PROBE llms.txt: HTTP 404 at https://yylo.dev/llms.txt”
- [probe] https://yylo.dev/docs/yylo.md“PROBE docs-md: HTTP 404 at https://yylo.dev/docs/yylo.md”
- [probe] https://yylo.dev/openapi.json“PROBE openapi: all candidate paths 404 (https://yylo.dev/openapi.json, https://yylo.dev/swagger.json, https://yylo.dev/api/openapi.json, https://yylo.dev/.well-known/openapi.json)”
Test against a sandbox environment without touching production dataweight 1
1 (weight) × 7 (quality) × 1.0 (full) = 7.0 of 10 max
- [claimed-docs] https://yylo.dev/docs/yylo“Start hydrates an exact-base task worktree. Preflight is read-only, finish queues the committed candidate”
- [github] https://github.com/yylo-dev/yylo“`task start` freezes the protected target SHA, creates a dedicated branch/worktree, and completes configured dependency hydration before reporting `WORKING`.”
- [github] https://github.com/yylo-dev/yylo“`doctor workspace` is intentionally nonzero when it finds an actionable topology problem; it never fetches or changes the workspace.”
- [github] https://github.com/yylo-dev/yylo“`merge land` selects one immutable task source, composes in a private detached candidate, and uses Git expected-old ref protection. A moved target requires recomposition and renewed candidate checks.”
- [claimed-docs] https://yylo.dev/docs/yylo-benchmark“Plan immutable experiments, execute isolated attempts, retain evaluator provenance, recover safely, and produce bounded reports.”
Rely on versioned APIs with a documented deprecation policyweight 2
2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max
- [probe] https://yylo.dev/openapi.json“PROBE openapi: all candidate paths 404 (https://yylo.dev/openapi.json, https://yylo.dev/swagger.json, https://yylo.dev/api/openapi.json, https://yylo.dev/.well-known/openapi.json)”
- [probe] https://yylo.dev/llms.txt“PROBE llms.txt: HTTP 404 at https://yylo.dev/llms.txt”
- [probe] https://yylo.dev/docs/yylo.md“PROBE docs-md: HTTP 404 at https://yylo.dev/docs/yylo.md”
- [claimed-docs] https://yylo.dev/docs/yylo-ledger“The 0.2.1rc6 channel adds ID-first general Records and typed task, wiki, workflow, and artifact profiles.”
API quality = 7.0 ÷ 70 × 100 = 10.0
Openness59.0/100×0.20 of the PA blend
Can you leave, inspect, or self-host — data export, open source, portability.
Do everything through the API that I can do in the UIweight 2
n/a — not applicable to this product: excluded from numerator and denominator
- [github] https://github.com/yylo-dev/yylo“YYLO is a command-line orchestrator for coding agents, repeatable workflows, and receipt-backed repository changes. It is for developers who want a quick agent loop and for project operators who need typed task, validation, merge, and release-readiness boundaries.”
- [claimed-docs] https://yylo.dev/docs/yylo“npm install -g @yylo/cli@0.2.2 yylo init --task "Describe one verifiable outcome" --subagent claude”
- [probe] https://www.npmjs.com/package/@yylo/cli“PROBE runtime (recorded 2026-09-14): `npm view @yylo/cli name version bin` — the official CLI is live on the public npm registry (@yylo/cli 0.2.2) and publishes the documented launchers as package bins: yylo, yy, ypl, feedback-yylo. Registry metadata only; no package code executed.”
Export all of my data in open formats and leaveweight 3
3 (weight) × 4 (quality) × 0.6 (partial) = 7.2 of 30 max
- [claimed-docs] https://yylo.dev/docs/yylo“Save the same contract as YAML for a reusable workflow.”
- [claimed-docs] https://yylo.dev/docs/yylo-ledger“The 0.2.1rc6 channel adds ID-first general Records and typed task, wiki, workflow, and artifact profiles.”
- [probe] https://github.com/yylo-dev/yylo/blob/main/LICENSE“PROBE runtime (recorded 2026-09-14): `curl -s https://raw.githubusercontent.com/yylo-dev/yylo/HEAD/LICENSE | head -3` returns 'MIT License / Copyright (c) 2026 JUNO AI INC.' — the full CLI source repo is public under MIT.”
- [github] https://github.com/yylo-dev/yylo“YYLO is a command-line orchestrator for coding agents, repeatable workflows, and receipt-backed repository changes. It is for developers who want a quick agent loop and for project operators who need typed task, validation, merge, and release-readiness boundaries.”
Read the product's source under an open licenseweight 2
2 (weight) × 8 (quality) × 1.0 (full) = 16.0 of 20 max
- [probe] https://github.com/yylo-dev/yylo/blob/main/LICENSE“PROBE runtime (recorded 2026-09-14): `curl -s https://raw.githubusercontent.com/yylo-dev/yylo/HEAD/LICENSE | head -3` returns 'MIT License / Copyright (c) 2026 JUNO AI INC.' — the full CLI source repo is public under MIT.”
- [github] https://github.com/yylo-dev/yylo“YYLO is a command-line orchestrator for coding agents, repeatable workflows, and receipt-backed repository changes. It is for developers who want a quick agent loop and for project operators who need typed task, validation, merge, and release-readiness boundaries.”
Self-host the core productweight 3
3 (weight) × 8 (quality) × 1.0 (full) = 24.0 of 30 max
- [probe] https://www.npmjs.com/package/@yylo/cli“PROBE runtime (recorded 2026-09-14): `npm view @yylo/cli name version bin` — the official CLI is live on the public npm registry (@yylo/cli 0.2.2) and publishes the documented launchers as package bins: yylo, yy, ypl, feedback-yylo. Registry metadata only; no package code executed.”
- [probe] https://github.com/yylo-dev/yylo/blob/main/LICENSE“PROBE runtime (recorded 2026-09-14): `curl -s https://raw.githubusercontent.com/yylo-dev/yylo/HEAD/LICENSE | head -3` returns 'MIT License / Copyright (c) 2026 JUNO AI INC.' — the full CLI source repo is public under MIT.”
- [github] https://github.com/yylo-dev/yylo“YYLO is a command-line orchestrator for coding agents, repeatable workflows, and receipt-backed repository changes. It is for developers who want a quick agent loop and for project operators who need typed task, validation, merge, and release-readiness boundaries.”
- [claimed-docs] https://yylo.dev/docs/yylo“npm install -g @yylo/cli@0.2.2 yylo init --task "Describe one verifiable outcome" --subagent claude”
Openness = 47.2 ÷ 80 × 100 = 59.0
Built-in AI17.3/100×0.15 of the PA blend
Inside-out: how agentic the product itself is for its users — built-in assistants, autonomous features.
Get AI-generated insights and suggestions from my data inside the productweight 2
2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max
- [github] https://github.com/yylo-dev/yylo“Tests and semantic reviews are explicit project checks outside merge. Merge launches no models, chooses no reviewers, schedules no suites, and maintains no validation cache.”
- [claimed-docs] https://yylo.dev/docs/yylo“npm install -g @yylo/cli@0.2.2 yylo init --task "Describe one verifiable outcome" --subagent claude”
- [claimed-docs] https://yylo.dev/docs/yylo“yy ledger create "Validate recovery" --status todo --tags auth yy ledger ready --sort asc yy ledger get TASK_ID”
Set up automations that run autonomously in the backgroundweight 2
2 (weight) × 7 (quality) × 0.6 (partial) = 8.4 of 20 max
- [claimed-docs] https://yylo.dev/docs/yylo“`yy loop` repeats arbitrary shell commands sequentially.”
- [claimed-docs] https://yylo.dev/docs/yylo/scripts/parallel-runner“Bounded concurrent fan-out for independent kanban tasks, data items, or complete commands—with structured evidence for every item.”
- [claimed-docs] https://yylo.dev/docs/yylo/scripts/parallel-runner“Continue a captured session with `yy continue SESSION_ID`; do not reconstruct work from tmux scrollback.”
- [claimed-docs] https://yylo.dev/docs/yylo/scripts/workflow-runner“Choose Workflow Runner when a step consumes `{{ steps.<id>.response }}`, a generated file, or a session from an earlier step.”
- [claimed-docs] https://yylo.dev/docs/yylo/scripts/run-until-completion“Repeat bounded YYLO iterations until no open kanban work remains.”
- [claimed-docs] https://yylo.dev/docs/yylo/scripts/integrations“Bring Slack messages or GitHub issues into kanban and return completed responses to their source thread.”
- [github] https://github.com/yylo-dev/yylo“YYLO is a command-line orchestrator for coding agents, repeatable workflows, and receipt-backed repository changes. It is for developers who want a quick agent loop and for project operators who need typed task, validation, merge, and release-readiness boundaries.”
Delegate tasks to a built-in AI assistant inside the productweight 3
3 (weight) × 4 (quality) × 0.6 (partial) = 7.2 of 30 max
- [claimed-docs] https://yylo.dev/docs/yylo“npm install -g @yylo/cli@0.2.2 yylo init --task "Describe one verifiable outcome" --subagent claude”
- [github] https://github.com/yylo-dev/yylo“YYLO is a command-line orchestrator for coding agents, repeatable workflows, and receipt-backed repository changes. It is for developers who want a quick agent loop and for project operators who need typed task, validation, merge, and release-readiness boundaries.”
- [claimed-docs] https://yylo.dev/docs/yylo“yy ledger create "Validate recovery" --status todo --tags auth yy ledger ready --sort asc yy ledger get TASK_ID”
Operate the product with natural-language commandsweight 2
2 (weight) × 0 (quality) × 0.0 (none) = 0.0 of 20 max
- [claimed-docs] https://yylo.dev/docs/yylo“npm install -g @yylo/cli@0.2.2 yylo init --task "Describe one verifiable outcome" --subagent claude”
- [claimed-docs] https://yylo.dev/docs/yylo“Start hydrates an exact-base task worktree. Preflight is read-only, finish queues the committed candidate”
- [github] https://github.com/yylo-dev/yylo“YYLO is a command-line orchestrator for coding agents, repeatable workflows, and receipt-backed repository changes. It is for developers who want a quick agent loop and for project operators who need typed task, validation, merge, and release-readiness boundaries.”
- [github] https://github.com/yylo-dev/yylo“`task start` freezes the protected target SHA, creates a dedicated branch/worktree, and completes configured dependency hydration before reporting `WORKING`.”
Built-in AI = 15.6 ÷ 90 × 100 = 17.3
Automation42.5/100×0.15 of the PA blend
Depth of automation primitives — rules, scheduling, bulk operations, webhooks.
Perform bulk operations across many items at onceweight 2
2 (weight) × 8 (quality) × 1.0 (full) = 16.0 of 20 max
- [claimed-docs] https://yylo.dev/docs/yylo/scripts/parallel-runner“Bounded concurrent fan-out for independent kanban tasks, data items, or complete commands—with structured evidence for every item.”
- [claimed-docs] https://yylo.dev/docs/yylo/scripts/run-until-completion“Repeat bounded YYLO iterations until no open kanban work remains.”
- [claimed-docs] https://yylo.dev/docs/yylo/scripts/parallel-runner“Continue a captured session with `yy continue SESSION_ID`; do not reconstruct work from tmux scrollback.”
- [probe] https://www.npmjs.com/package/@yylo/cli“PROBE runtime (recorded 2026-09-14): `npm view @yylo/cli name version bin` — the official CLI is live on the public npm registry (@yylo/cli 0.2.2) and publishes the documented launchers as package bins: yylo, yy, ypl, feedback-yylo. Registry metadata only; no package code executed.”
- [probe] https://github.com/yylo-dev/yylo/blob/main/LICENSE“PROBE runtime (recorded 2026-09-14): `curl -s https://raw.githubusercontent.com/yylo-dev/yylo/HEAD/LICENSE | head -3` returns 'MIT License / Copyright (c) 2026 JUNO AI INC.' — the full CLI source repo is public under MIT.”
Define rules that trigger actions automatically on eventsweight 3
3 (weight) × 5 (quality) × 0.6 (partial) = 9.0 of 30 max
- [claimed-docs] https://yylo.dev/docs/yylo/scripts/integrations“Bring Slack messages or GitHub issues into kanban and return completed responses to their source thread.”
- [claimed-docs] https://yylo.dev/docs/yylo/scripts/run-until-completion“Repeat bounded YYLO iterations until no open kanban work remains.”
- [claimed-docs] https://yylo.dev/docs/yylo/scripts/workflow-runner“Choose Workflow Runner when a step consumes `{{ steps.<id>.response }}`, a generated file, or a session from an earlier step.”
Schedule recurring jobs or workflowsweight 2
2 (weight) × 5 (quality) × 0.6 (partial) = 6.0 of 20 max
- [claimed-docs] https://yylo.dev/docs/yylo“`yy loop` repeats arbitrary shell commands sequentially.”
- [claimed-docs] https://yylo.dev/docs/yylo“Save the same contract as YAML for a reusable workflow.”
- [claimed-docs] https://yylo.dev/docs/yylo/scripts/workflow-runner“Choose Workflow Runner when a step consumes `{{ steps.<id>.response }}`, a generated file, or a session from an earlier step.”
- [claimed-docs] https://yylo.dev/docs/yylo/scripts/run-until-completion“Repeat bounded YYLO iterations until no open kanban work remains.”
- [github] https://github.com/yylo-dev/yylo“YYLO is a command-line orchestrator for coding agents, repeatable workflows, and receipt-backed repository changes. It is for developers who want a quick agent loop and for project operators who need typed task, validation, merge, and release-readiness boundaries.”
Version, review, and roll back my automationsweight 1
1 (weight) × 5 (quality) × 0.6 (partial) = 3.0 of 10 max
- [github] https://github.com/yylo-dev/yylo“`task start` freezes the protected target SHA, creates a dedicated branch/worktree, and completes configured dependency hydration before reporting `WORKING`.”
- [github] https://github.com/yylo-dev/yylo“`merge land` selects one immutable task source, composes in a private detached candidate, and uses Git expected-old ref protection. A moved target requires recomposition and renewed candidate checks.”
- [claimed-docs] https://yylo.dev/docs/yylo“Save the same contract as YAML for a reusable workflow.”
- [claimed-docs] https://yylo.dev/docs/yylo-ledger“The 0.2.1rc6 channel adds ID-first general Records and typed task, wiki, workflow, and artifact profiles.”
Automation = 34.0 ÷ 80 × 100 = 42.5