fix(landing): precision pass on marketing copy — correct claims, de-slop, ja/ko parity

[Makisuo]

What changed

Full copy pass over apps/landing to remove AI-slop phrasing and — more importantly — fix claims that were factually wrong or self-contradicting.

Factual corrections

• MCP transcript honesty: the homepage lede claimed "The transcript on the right is real" — the component is scripted/pre-rendered. Now: "walks through the exact tool calls an agent makes." Also dropped the claim that Maple's MCP server "opens PRs" (that's the agent's capability).
• Competitor MCP row was wrong: the bill table marked Datadog/New Relic/Grafana "No" on MCP, but all three ship official MCP servers as of 2026 (Datadog GA March 2026, New Relic Feb 2026, Grafana mcp-grafana). Corrected to "Yes". competitors.ts binary cells for OTel support / retention control replaced with accurate nuance ("OTLP ingest via Datadog Agent", "Extended retention costs extra").
• Pricing unified at $0.30/GB per apps/api/autumn.config.ts: the PricingTable fallback and PricingCalculator both said $0.25. FAQ answers now state concrete numbers ($39/mo, 100 GB per signal, 14-day card-required trial). Resolved the "Predictable pricing — no usage-based charges" vs "usage-based pricing" contradiction; fixed "Trials available on every plan" (Enterprise has none).
• License wording standardized to "FSL-1.1 → Apache 2.0 (each release after two years)" per the root LICENSE — previously four different spellings.
• CNCF claim verified true and strengthened: OpenTelemetry graduated May 2026 and is the second-most-active CNCF project.
• Retention standardized on 30 days for Startup (the "14-day" string had confused trial with retention; it only renders for a dormant free tier).

De-slop

"Built different" → "Why queries come back fast"; "We told you it was honest" → "The bill, line by line"; footer manifesto → "No per-seat fees. No proprietary agents. No black boxes."; "billions of rows in milliseconds" → "sub-second queries across billions of rows"; demo scenarios (90-seconds, 3 AM agent) framed as scenarios; the best-tools listicle now discloses its bias plainly instead of calling itself "honest". Fixed a pre-existing "© © 2026" doubling in the footer.

i18n

ja.json/ko.json rebuilt to full 592-key parity with en.json: all 38 changed keys retranslated plus 37 previously missing keys (chat, dashboards, alerting, error tracking, calculator) that silently fell back to English.

Verification

• bun run build passes (95 pages)
• Rendered pages verified in the browser: home (en/ja/ko), /pricing, /compare/datadog — new copy renders, no mojibake, bill table cells correct

Reviewer notes / open decisions

1. Live Autumn still returns $0.25/GB at build-time fetch, so the deployed pricing cards will show $0.25 next to marketing saying $0.30 until autumn.config.ts is pushed (or the price decision flips to $0.25).
2. Hero still says "Open-source" while FSL-1.1 is source-available (not OSI) — body copy is now precise; the headline is a positioning decision left unchanged.
3. Docs (otel-conventions.md) still state 90d/365d retention — infra TTLs vs the 30-day Startup entitlement; may want a caveat in a follow-up.

🤖 Generated with Claude Code

---

[pullfrog]

Your Pullfrog Router balance is exhausted.

You have a card on file but auto-reload is disabled, so runs paused once your balance went past the overdraft buffer.

Top up balance → · Enable auto-reload →

  ^{｜ ⚠️ this action is pinned to a commit SHA, which freezes the cleanup step — switch to @v0 or keep the SHA fresh with Dependabot ｜ Rerun failed job ➔ ｜ View workflow run ｜ via Pullfrog ｜ Using Claude Opus ｜ 𝕏}

[devin-ai-integration]

✅ Devin Review: No Issues Found

Devin Review analyzed this PR and found no potential bugs to report.

View in Devin Review to see 3 additional findings.