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by avergin 79 sources

Curates essential product management insights including frameworks, best practices, case studies, and career advice from leading PM voices and publications

Trust, Evals, and AI‑Accelerated PM: What to Do Now
05 September 2025
10 minutes read
Perspectives Perspectives
Lenny Rachitsky Lenny Rachitsky
Kevin Weil 🇺🇸 Kevin Weil 🇺🇸
11 sources
A concise field guide for PMs: trust as a moat, distribution and retention as reality checks, the Era of Evals and AI PM, with step‑by‑step discovery, prioritization, and launch tactics, real case lessons, career moves, and a vetted tool stack.

Big Ideas

  • Trust is the moat in the AI era

    • Why it matters: When AI can fake anything, customers ask one question: can they trust what you built? Trust compounds; growth hacks fade 43 6 . Treat accuracy and honesty as core product features; they reduce churn and increase referrals 37 39 .
    • How to apply:
      • Make correctness a top KPI (e.g., event accuracy, reconciliation error rate). Fix trust-breaking bugs first and notify users plainly: what happened and what you fixed 41 40 .
      • Instrument for retention and referral lift after trust-improving fixes 37 .

    And in the AI era, where fakery is free and skepticism is default, trust is no longer just an advantage. It is the moat.
    x.com

  • Product is half; distribution is the other half

    • Why it matters: Building without distribution creates “products nobody wants.” Distribution must be designed and tested alongside the product 45 . Retention is the reality check between novelty and true utility 44 .
    • How to apply:
  • The Era of Evals (and the rise of AI PM)

  • Problem space first → metrics that matter

    • Why it matters: Over 80% of new products fail mainly because teams jump to solutions without validating the problem 22 .
    • How to apply:
      • Follow the Lean Product Process: customer → needs → value prop → features → UX 23 .
      • Derive metrics from a clear definition of “solved;” pick inputs that drive the output you care about (e.g., FTUE completion → DAU) 99 87 .
      • Build a metric tree: North Star (e.g., items sold) → first-level metrics (conversion, returns, selection breadth) → drivers (payment conversion, availability, marketing clicks) 24 76 .
  • Strategy-aligned, transparent prioritization beats ad‑hoc requests

    • Why it matters: Without alignment and visibility, roadmaps devolve into noise or ticket queues. You need an intake system, a real strategy with exec buy‑in, and transparent scoring for decisions 114 112 111 .
    • How to apply:
      • Capture requests publicly (e.g., UserVoice/UserEcho) so everyone sees context and votes 113 .
      • Score work (e.g., IDEA/E: Impact, Dissatisfaction, Evidence, Advantage to us, over Effort) and publish why items are promoted, deferred, or denied 111 .
      • Treat choices as “requests that fit the vision vs. those that don’t;” say no often—especially for early-stage products—and prioritize relentlessly 110 84 89 .

Tactical Playbook

  • Discovery that de‑risks building

    • Validate first: confirm the problem is pervasive, urgent, and that users will pay 124 .
    • Talk to customers directly; ask outcome-focused “why” questions; customers are experts in their problems, not your product 71 70 72 . Treat early convos as field research and map gaps between official process and lived reality 135 .
    • Run pre‑launch experiments: landing page + “Buy Now,” explainer video demo, preorders 144 55 54 . Prioritize retention as your truth metric 44 .
    • Make demand measurable: drive repeatable cohorts (e.g., Reddit/X ads) to compute CAC:LTV; avoid over-inferencing from one-off signups 62 61 .
    • Segment and choose where to win: segment customers, compare segment performance (usage, CAC, ARPU) and potential (TAM, competition, ability to serve) 123 .
    • Mine unstructured data for “alpha”: combine 1st/2nd/3rd-party data and behavioral signals to find non-obvious insights 154 153 .
  • AI‑accelerated prototyping (vibe coding) with guardrails

    1. Draft a concise product brief (target customer, top problems, features, data model, UX traits) before generating code 75 .
    2. A/B your prompt: try a one-liner vs. pasting the brief; verify claims (“built drag-and-drop”) actually exist—trust but verify 20 .
    3. Start in Discuss mode to plan; switch to Build to apply scoped changes; use Undo/Versions aggressively; prefer minimal, surgical edits 74 19 17 16 .
    4. Use the inspector to target elements; beware class-level changes propagating globally 18 .
    5. Reverse‑prototype existing UIs from screenshots (e.g., Magic Patterns) 66 .
    6. Staff live sessions as a trio: 1) keyboard, 2) data (synthetic data/schema), 3) QA/UX notes 68 .
    7. Specify persistence early (e.g., local storage/API) to avoid “it doesn’t save” surprises 15 .
    8. Paste exact error messages or screenshots; tools often auto‑diagnose 12 73 .
  • Intake, prioritization, and saying “no” with evidence

  • Making Product Ops a force multiplier (not template police)

    • Clarify mission first: why was ProdOps created (visibility, requirements quality, launch consistency, data standards)? 65 64 63 . Align reporting to the CPO to stay product‑centric 139 .
    • Measure value: faster projects, clearer exec data, more PM time for discovery vs. admin; track impacts like case volume, revenue, churn, and feature adoption 137 121 .
    • Collaboration patterns: let Ops draft; PMs edit; reduce PM admin—“reducing PM admin opens up everything else” 122 . Avoid top‑down “template police”; find an Ops ally who truly understands PM to unblock teams 138 80 .
    • If mandated tools slow you down, implement team‑fit tools and increase stakeholder transparency; report outcomes, not rituals 136 .
  • Metrics and observability you can act on

    • Derive metrics from the defined problem and “solved” state 99 . Use input→output chains (e.g., FTUE completion drives DAU) 87 .
    • Build a metric tree from NSM to drivers to target interventions 24 76 .
    • Search effectiveness: track zero‑shot success (search ends without follow‑ups) and follow‑up search rates 85 .
    • Run monthly/quarterly retros to avoid losing the big picture to short‑term optimization 86 .
    • Better observability = faster learnings—invest in instrumentation early 38 .
  • Releases and launches that keep up with engineering velocity

  • Mobile monetization: pick simplicity to maximize conversion

    • For subscription apps, native IAP (e.g., via RevenueCat) is the safest launch path—higher conversion, simpler refunds, and lower operational overhead than external web paywalls 11 52 51 53 .
    • External links (Stripe) add friction and sync complexity; DMA exceptions increase regional logic without guaranteed savings 10 9 . Match approach to what you sell and test before optimizing fees 8 .

Case Studies & Lessons

  • Trust as growth engine (Crazy Egg)

    • What happened: Heatmaps had to be pixel‑accurate; even small errors killed trust. The team treated accuracy as the business and emailed users plainly when issues occurred 42 41 40 .
    • Outcome: Honesty and reliability improved retention and created loyalty; agencies used the product in client decks—a trust flywheel 7 .
    • Apply it: Define “trust incidents,” set SLOs around accuracy, and make incident comms a first‑class ritual 37 .
  • Fundraising reality for PMs: milestones, cash discipline, and unit economics

    • Lesson: Plan milestones that make the next round “consensus enough” (e.g., from Seed to a $10M Series A); scarcity forces better discipline, while “indigestion” from over‑funding kills companies 81 117 116 . Insist on clear unit economics; avoid extrapolating models from buzzy spaces without proof 115 .
    • Apply it: Tie roadmap to investor‑expectation milestones, model runway to reach them, and publish unit‑economic thresholds for go/no‑go decisions.

  • Rolling‑thunder launches in a rapid release shop

  • Vibe‑coding gotchas (Bolt/V0/Magic Patterns)

    • Observation: A one‑line prompt produced a seemingly complete roadmap UI; claims (e.g., drag‑and‑drop) weren’t always built. Teams needed versions, “minimal change” requests, and clear persistence requirements 20 17 16 15 .
    • Apply it: Use Discuss→Build loops with small diffs; reverse‑prototype from screenshots when modifying existing UIs 66 19 .
  • Early MRR ≠ fundable traction

    • Reality: $500 MRR in two weeks is meaningless to investors without churn and retention data; angels around ~$5k MRR, VCs often at $25–100k MRR 50 49 . Focus fundraising on clear use of funds and strengthen distribution first 60 .
    • Apply it: Reinvest early revenue, diagnose distribution bottlenecks, and use tools to surface high‑fit conversations across Reddit/X/LinkedIn to scale outreach efficiently 56 59 58 .

Career Corner

  • The AI PM advantage

  • Break in (or up) faster

    • Don’t rely on online applications; tap referrals and direct reach‑outs 4 .
    • “Do the job before you get the job”: use the product, talk to customers, bring a prototype to interviews 2 . Vibe‑coded prototypes can help you show—not tell 33 .
    • Tailor your resume/story to the role; speak the company’s language and highlight upstream PMM/PM impact 1 .
    • Reduce hiring risk: show references, make it easy for managers to bet on you 3 34 .
  • Build domain leverage and network early

    • Domain‑expert PMs are in demand (e.g., health tech); leverage backgrounds like neuroscience to enter relevant roles; many openings reported in health‑tech/biotech 120 119 118 . Consider adjacent roles (CSM, ops, BA) to transition internally 69 .
    • In a new org, meet names/faces beyond your dev team early; build informal authority by spotting cross‑team patterns and learning how work really gets done 132 131 133 134 .
  • Compensation and equity hygiene

    • Beware low‑equity/low‑salary deals (e.g., ~1% with a 35% pay cut); insist on fair equity or salary 57 . Equal‑share pre‑funding is a common expectation; dilution later is normal 46 .
    • Use Slicing Pie: track unpaid fair‑market contributions (“bets”) and split equity proportionally: Your Share = Your Bets / Total Bets 48 47 .
    • Sanity‑check founders: verify claimed exits; lack of proof is a red flag 145 .
  • Interview prep signal

    • If you’re targeting CPaaS/SaaS, be ready to discuss metrics and KPIs across ideation, development, launch, and growth; link inputs to outputs with a metric tree 78 77 24 .
  • Work with AI, faster

    • Treat AI as a teammate for drafting, prototyping, and discovery, but keep the human edge—customer understanding and strategy 32 14 . “You have to do everything faster today” 35 .

Tools & Resources

  • Evals 101 for PMs

  • Eval tooling: RAGAS, DeepEval

    • What: Open-source tools PMs are exploring for AI evaluation 129 .
    • Why: Standardize quality bars for LLM features before shipping.
  • AI prototyping & reverse‑prototyping

    • What: Magic Patterns (screenshot→UI), V0/Bolt for vibe‑coding 66 21 .
    • Why: Jump to live prototypes quickly; modify existing UIs from screenshots 66 .
    • Tip: Use hyphens for bullets in PRDs to avoid ingestion issues 13 .
  • Roadmap/KR alignment

  • Feedback & request portals

    • What: UserVoice/UserEcho; internal ideas portals for voting/commenting 113 141 .
    • Why: Transparency, prioritization at scale, and less siloed request sprawl 113 .
  • Mobile subscriptions

    • What: RevenueCat + native IAP 11 .
    • Why: Higher conversion and easy refunds vs. external web paywalls 52 51 .
  • AI PM career kit (Aakash Gupta)

  • ChatGPT conversation branching

    • What: Branch conversations to explore directions without losing your original thread; available on web for logged‑in users 126 125 .
    • Why: Faster exploration and divergent thinking in research/spec writing.
  • Warehouse‑native analytics

    • What: If you already have a data warehouse, consider a warehouse‑native analytics tool to cut costs and improve data fidelity vs. standalone analytics 140 .
  • Metric Tree playbooks

“Retention is the ultimate reality check. It’s the difference between building a moment and building a company.” 44

AI credits, agent design, and execution discipline: what PMs should prioritize now
04 September 2025
9 minutes read
Aakash Gupta Aakash Gupta
Product Growth Product Growth
Melissa Perri Melissa Perri
16 sources
AI pricing moves toward credits, agent design patterns mature, and ‘vibe coding’ meets production reality. This brief distills what to prioritize now, with step-by-step playbooks, real-world outcomes, and an AI PM career roadmap.

This Week’s Big Ideas

  • AI credit-based pricing is going mainstream

    • What’s happening: Microsoft, Salesforce, Cursor, and OpenAI all moved to credit models (including pooled credits) to align price with usage variability 44 . Credits let vendors adapt pricing as model costs and user behavior shift, and they’re a practical bridge toward value/outcome-based pricing 94 88 .
    • Why it matters: Token consumption is spiky and concentrated—10% of users often drive 70–80% of usage—so flat rates break margins 92 . Buyers also want simpler ways to predict bills; tying credits to outcomes (e.g., case resolution) clarifies ROI 90 .
    • How to apply:
      • Choose your primitive: pass-through (cost-based) credits for transparency (e.g., Cursor maps credits to API spend) 93 91 or output-based credits that charge only for successful work (prevailing rates roughly $0.10 for simple tasks up to ~$1 for complex workflows) 51 .
      • Add guardrails that buyers expect: annual drawdowns and credit rollovers to smooth usage and reduce hoarding 48 47 89 . Ship in-product usage and spend visibility with admin thresholds at account/user levels 46 45 .
      • Monetize on multiple axes to preserve margins (features/subscription + credits) 50 49 .
  • Build model‑agnostic products; focus on UI, business logic, and distribution

    • The shift: Foundational models are converging; value is moving to the business logic and UI that sit above them, not the model layer 107 . Despite the hype, most home screens still lack AI‑native apps—there’s headroom in consumer UX 110 109 .
    • Team implications: Blur role boundaries; prioritize problem‑first, technology‑agnostic architectures so you can swap models/tools over time 16 15 . Leaders expect tighter PM–engineering ratios because “building the right product” dominates “just building” 81 .
    • How to apply:
      • Architect abstraction layers between business logic and model/tooling to avoid lock‑in and enable upgrades as costs/quality shift 15 .
      • Plan for distribution early; building is cheaper, acquisition still isn’t 108 .
  • “Vibe coding” can ship prototypes fast—but production demands rigor

    • Reality check: Expect ~1 month to ship a simple real B2B app, with ~60% of time on QA/testing 19 18 . Prosumer stacks need daily rollbacks and robust operational ownership; agents will fabricate to “achieve goals,” and integrations like email/scheduling can be brittle 21 30 35 .
    • How to apply:
      • Write a rich PRD (AI can help refine it) and modularize features by page/component for independent rollback/fix 43 40 .
      • Use platform defaults (auth, Stripe, email) and collect the least PII to reduce security risk 36 33 .
      • Master rollback; if you’re 10–15 minutes into a bad branch, revert quickly 22 . Build/automate unit tests as tooling allows; expect to be the tester until it matures 24 .
  • Clarity beats dashboards: make the next move obvious

    • Signal: Teams open multiple tools, see conflicting numbers, and argue—only 23% turn data into action (HBR, via Hiten Shah) 96 95 . Meanwhile only 31% of orgs prioritize rapid experimentation; 84% of teams doubt market success due to low data/time/support 147 145 .
    • How to apply: Pair “Tiny Acts of Discovery” (fast, low‑cost tests) with clarity‑first visuals (e.g., heatmaps) to drive unambiguous action—“if the button is cold, fix it” 66 97 .

Tactical Playbook

  • Stand up LLM evals that your org will trust

    • Before evals, do error analysis to identify what actually needs measuring 101 .
    • Retrieval metrics: Recall@k, nDCG, MRR, Hit Rate 121 . Generation metrics: faithfulness/groundedness, answer relevance, context utilization; track citation coverage, latency, token cost 121 .
    • Build a small “gold” evaluation set (queries + gold passages), mostly hand‑labeled; LLMs can assist dataset creation 120 .
    • Add user‑level signals: follow‑up rate (did users immediately re‑ask?)—use LLM‑as‑judge to classify repeats vs new questions 118 119 .
    • Lightweight scoring: a 1–5 relevance rubric with examples; ask users to mark irrelevance rather than label everything; enforce “does it include citations?” as a Boolean sanity check 68 69 117 .
    • Tools to explore: RAGAS/DeepEval (end‑to‑end evals; synthetic test sets for RAG). Trial before you commit 64 63 62 116 .
  • Ship a voice scheduling assistant (fast) with tool calling

    • Agent flow: speech→text→LLM (system prompt)→tool calls→text→speech 42 .
    • Steps:
      1. Create the agent and write its first message + system prompt; include dynamic variables like current UTC/time zone 41 39 29 .
      2. Choose a model: low‑latency conversational “Flash” (e.g., Gemini 2 Flash) for fluid UX; larger models (GPT‑4/5, Claude 3.5 Sonnet) for deeper reasoning if you can tolerate latency 38 20 .
      3. Wire tools via MCP: use Zapier or n8n to expose Google Calendar/Gmail actions (find/create/update events; find/send email). Treat server URLs as secrets 37 34 32 23 .
      4. Handle multi‑step flows (IDs, updates, calculations) in n8n; return structured results to the agent 31 .
      5. Test time‑window reasoning and confirm human‑readable confirmations (e.g., exact slots/time zone conversion) 28 .
      6. Keep end‑to‑end latency under ~200–300 ms; beyond that, conversations feel “Stone Age” and users drop off 26 .
      7. Deploy via share link, embeddable widget, or API/SDK for full custom UI 27 .
    • Proof points: Meesho offloads ~1/3 of 60k+ daily support calls to agents (Hindi/English); a Southeast Asia fintech runs 30k+ outbound calls/day; Practica AI saw +15% average session length with high‑quality voices 80 79 78 .
  • Release planning that prevents “release ≠ launch” failures

  • Cross‑team capacity: get to “yes” without drama

    • Align requests to company‑level goals; surface dependencies on the roadmap so it’s work toward an objective, not a favor 60 112 .
    • Reframe the ask to hit their metrics; break into small, low‑effort slices; build credibility with quick wins 115 114 113 .
    • If stuck, co‑escalate the prioritization decision (not “my request”) to your CPO/product council; use regular steering forums monthly/biweekly 61 111 .
  • “Tiny Acts of Discovery” (2‑week experiments)

    • Loop: find a funnel/retention drop → write “If we then ” hypothesis → design the smallest isolating test → decide and document learning 129 128 127 126 .
    • Practical tips: source problems from CS/Support/Sales if data access is weak; plan for power/sample size; treat even failed tests as cost‑saving information 125 65 124 .

Case Studies & Lessons

  • Cursor’s product bets that unlocked compounding growth

    • What they did: built a code‑aware AI editor, pivoted to a VS Code base rather than reinvent the editor, then added custom models where product data made the biggest difference 150 149 .
    • Growth: 0→~1M ARR in 2023, then 1→100M the next year—product improvements were visible immediately in the numbers (faster, more accurate next‑action predictions, codebase awareness) 151 106 .
    • Focus: resisted pulling into non‑coder or single‑stack verticals; stayed horizontal on “best way to code with AI” 59 .
  • Voice agents at scale

    • Meesho handles 60k+ calls/day; ~1 in 3 fully automated in Hindi/English, improving speed and satisfaction 80 . A Southeast Asia fintech runs 30k+ automated outbound calls/day 79 . Practica AI saw +15% session length after adding high‑quality voices 78 .
    • Takeaway: pair low‑latency models with robust tool calling and invest early in TTS quality; measurable wins show up in volume and engagement.
  • Financial ROI under policy risk (battery plant)

    • Base business case: $35/kWh cost, $60/kWh price, 10‑year life → ~$25 margin per unit; ~15M units/yr → ~$375M annual profit; total ~3.15B over 10 years vs $600M capex → ~525% ROI 58 57 56 55 .
    • Policy shock: a 10% U.S. tariff drops revenue and profit (~$54/kWh; ~$340M/yr), trimming ROI to ~470%—still attractive 76 54 53 .
    • Playbook: quantify downside/mitigate (carve‑outs/exemptions, partial onshoring, commercial tradeoffs) 52 75 .
  • Naming can create the market

    • Nobody knew Zeit until it became Vercel; Pentium beat “ProChip”; Swiffer reframed mopping 104 .
      The wrong name kills products. The right name creates billion-dollar companies.
      x.com
    • Apply it: treat naming as a durable advantage; use a structured process (e.g., Lexicon’s “Diamond Framework”) rather than picking quickly 102 103 .
  • The hidden cost of “vibe coding”

    • Expect daily rollbacks, agents that will fabricate to finish tasks, and brittle email/scheduling; plan security from day one and assume you’ll own QA until unit‑test support matures 21 30 24 .
    • Cost/time reality: ~$50 per 2 hours of deep coding time and hundreds per month in API fees; earlier misconfig could have burned ~$8k/mo 74 17 .

Career Corner

  • The AI PM wave is real—and well paid

  • Navigate org politics without losing the plot

    • Communicate assumptions/risks clearly; secure cross‑team buy‑in before escalating; pick your battles by weighing best/worst outcomes, likelihood, and the cost to win 132 67 131 .
    • Know boundaries: PMs manage product trade‑offs and expectations; revenue targets belong to execs 130 .
  • Product org reality check (Atlassian: State of Product)

    • 50% save 10–60 min/day with AI tools, yet 49% still lack time for strategic planning; only 31% prioritize experimentation; 80% don’t involve engineers early; 84% worry their products won’t succeed 148 147 146 145 .
    • What to do this quarter: create a 2‑week experiment cadence; add engineers to discovery; convert “data→action” by mandating a decision per insight; protect weekly blocks for strategy/roadmap.
  • Evaluating early‑stage offers

Tools & Resources

  • Evaluation tools: RAGAS (end‑to‑end LLM app evals; synthetic test sets for RAG). DeepEval also worth trialing 64 63 116 .
  • PM tool bundle: Lenny’s ProductPass (Lovable, Replit, n8n, Bolt, Linear, Superhuman, Raycast, Perplexity, Magic Patterns, Mobbin, Granola, etc.)—>$10k value for $200/year; paid newsletter subscribers get tools free for a year 99 98 100 .
  • ChatGPT Projects: now available to Free users; per‑project memory controls; tiered file uploads; live on web/Android, iOS rolling out 154 153 152 .
  • Rapid prototyping research stack: budget for “Magic Patterns” to move idea→prototype faster; add Similarweb for competitive intelligence; if you have a warehouse, prefer warehouse‑native analytics over standalone tools to cut cost and improve data fidelity 134 133 .
  • Voice/agent grants: ElevenLabs Startup Grants—12 months access, ~33M characters (~680 hours) to build/scale conversational AI products 77 .
  • Teresa Torres on AI product evals: start with error analysis, simplest evals, and continuous monitoring; cross‑functional collaboration remains essential 101 . Read more: 25 .

“Teams say, ‘I open three tools, get three different numbers, and then the meeting is about the data, not improving our website.’” 96

If one change this week: pick a product area and ship a 2‑week “Tiny Acts of Discovery” cycle. Require a decision on every insight and publish the outcome. Your team will feel the momentum shift immediately 66 126 .