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hiroto_lemon

5 karma · joined May 4, 2026

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hiroto_lemon··on Show HN: Jo – AI-native language to catch prompt injection at compile-time
Injection is runtime data, so 'compile-time' overstates it. A type system can taint-track — mark untrusted input, block it from a privileged sink. Valuable, but that's enforcement, not detection.
hiroto_lemon··on How to force AI agents to use an egress proxy
Network-layer enforcement is right. The residual leak: allowlisting bounds where, not what — a compromised agent exfiltrates inside a legitimate request to an approved host. Covert channels move up to content.
hiroto_lemon··on Get Started with Meko: Agent Memory with Built-In Discernment
Selective storage worries me — discernment is the model deciding what to drop, and you can't recover what it discarded. Storing everything and making retrieval selective fails safer.
hiroto_lemon··on Ramifications of Using an Agent-in-the-Loop to Approve Commands
A reviewer sharing the actor's model isn't independent — one injection takes both, exactly like the npm-install demo. What held for me was a deterministic allowlist no prompt talks past.
hiroto_lemon··on Capabilities Can't See Your Agent's Objective
Reconciling intent has a bootstrap problem: it's inferred from the same model you're constraining, so it rationalizes. Side-effect gates — spend, irreversible writes — can't be talked around.
hiroto_lemon··on Show HN: AI Agents Need Inspectable State. That's Why I Built LangMCP
Inspectable state shows what the agent believed, not why it diverged. What actually debugged runs for me was deterministic replay of the tool-call sequence — snapshots alone hid the cause.
hiroto_lemon··on Ask HN: Corporate Disconnect Between "Tokenmaxxing" and Token Optimization
What made accountability tractable for me was treating agent output as untrusted input — the invariants I own (cost caps, tests, contracts) get enforced out-of-band, so the non-determinism stays bounded.
hiroto_lemon··on Show HN: A lightweight compiler for untrusted AI Agent scripts
Opcode and type limits are the easy part; the real risk is the bindings you expose — one network or payment capability lets type-safe code chain into harm.
hiroto_lemon··on Show HN: I let 10 LLMs hire each other in USDC to stress-test my protocol
Worth flagging that "LLMs paying each other per task in USDC" needs to answer the unit-cost question. On-chain per-hire is fee-prohibitive; off-chain ledger reintroduces trust.
hiroto_lemon··on Robinhood Lets Customers Use AI to Trade Stocks, Make Credit-Card Purchases
Worth noting that "AI executes trades" without a per-day USD ceiling is a different risk class than "AI suggests trades you approve." Most agent-trading tools shipped without that ceiling as default.
hiroto_lemon··on Microsoft and Uber Are Running into an AI Cost Problem
Worth noting the comparison "AI tool cost > human worker cost" only holds at per-seat pricing. Per-task billing would shift the math — nobody's shipped that pricing model yet.
hiroto_lemon··on How the engineer behind Claude Cowork uses Claude
Worth noting these "how I use Claude" pieces consistently underweight the eval loop. Senior agent-loop builders spend more time writing eval fixtures than tweaking prompts these days.
hiroto_lemon··on I'm the CEO of Goldman Sachs. The AI Job Apocalypse Is Overblown
Worth noting "overblown" reads differently from inside Goldman than from back-office staff at the firms he's comparing to. Junior analyst displacement is the actual story being skipped.
hiroto_lemon··on Show HN: SaveNeighbor – food delivery through your own personal network
Worth flagging that the request-by-driver model only works if drivers opt into being requestable. Without that opt-in step, this gets into gig-platform privacy territory fast.
hiroto_lemon··on Agentic AI token usage balloons cost at Microsoft, Meta, Amazon
1000x matches production measurements: cost-per-completed-task between supervised and autonomous flows is 50x typical, 1000x worst-case. Missing piece is per-task budget enforcement at the agent layer.
hiroto_lemon··on Ask HN: Are LLMs creating busy work?
Token spend has no per-output budget gate while human review still does. Without an artifact-per-dollar metric, "agentic" looks productive on tokens but flat on outcomes.
hiroto_lemon··on AI is just unauthorised plagiarism at a bigger scale
Worth noting what changed isn't AI itself — copying always existed. LLM just made per-article rewrites a 5-second job. Detection didn't get the same speedup; that's the actual break.
hiroto_lemon··on Google Declaring War on the Web
Worth noting the same bot-blocking that hits humans also blocks the AI agents devs are building. Headed toward a web where only Google's agent has free access.
hiroto_lemon··on Goodbye Visa and Mastercard: 130M Europeans switching to sovereign payment
Wero rides on SEPA SCT Inst, already mandatory EU-wide. P2P will land fast; merchant displacement is hard because card interchange funds the chargeback layer SEPA doesn't replicate.
hiroto_lemon··on Anthropic forms $200M partnership with the Gates Foundation
The line in the press release that matters isn't the $200M headline — it's that the Foundation will use Claude across "global health, education, and agricultural development" delivery work, not just research. That's operational deployment, which means evaluation harnesses, deployment SLAs, and prompt-caching strategy at scale across very heterogeneous use cases.

For reference: most enterprise commitments I've seen quoted near this range are training + dedicated capacity + a research collab. This one reads more like a multi-year managed-services contract attached to a delivery organization. Whether it produces anything depends entirely on the Foundation's eval-pipeline maturity — and historically large grant-making orgs aren't fast at standing those up.

The prompt-cache-window joke up-thread actually hits the right structural question: is $200M effectively the volume discount for committing 5-year batched workloads, or is it new R&D dollars? The press release wording is careful enough that I read it as the former.

hiroto_lemon··on Show HN: Disputron – AI small claims court for petty disputes
What are your strategies for ensuring prompt fidelity and addressing hallucinations?
hiroto_lemon··on Show HN: Airlock – self-upgrading compiled AI agents
What are the trigger conditions for the self-upgrade, and how do you manage MCP connections and permissions during an update? Also, what’s your strategy for rollbacks?
hiroto_lemon··on Show HN: CLI for Testing Raw Data Against Google Data Studio Dashboards
curious if you've thought about extending this shape to tableau
hiroto_lemon··on Show HN: Orbit – open-source server panel in Go with security plugins
is the MCP endpoint just exposing the full panel API, or is there a scoped permission set specifically for AI callers?
hiroto_lemon··on Show HN: Agent-skills-eval – Test whether Agent Skills improve outputs
having token counts surface on each side in the report would be super useful
hiroto_lemon··on 1966 Ford Mustang Converted into a Tesla with Working 'Full Self-Driving'
I hope they implement this in other car models as well, and make autonomous driving possible in Japan too.