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Building thoughtful software with AI.Notes from the systems behind the work.

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July 19, 2026article

Make Evidence Pursuit Goal-Complete

Plan evidence needs, acquire and validate sources, track coverage, resolve disagreements, and stop when the answer is supported rather than when activity merely ends.

research
evidence
4m read
July 17, 2026article

Carry the User’s Goal Across Every Turn

Use a user-authoritative goal frame, relevant context, evidence binding, publication checks, and multi-turn evaluation to keep every turn aligned with the user’s current objective.

conversational-systems
system-design
3m read
June 21, 2026article

Route Specialized Work by Role, Then Promote on Evidence

Give planning, editing, review, summarization, browser, and shell work explicit contracts, bounded authority, deterministic fallbacks, and evidence-based promotion.

system-design
routing
3m read
June 17, 2026article

Build Self-Improvement on Calibrated Evaluation

Combine immutable run evidence, distinct revisions, blinded gold cases, inter-evaluator agreement, adjudication, and replication artifacts so automated improvement advances on trustworthy measurements.

evaluation
systems-design
3m read
April 11, 2026article

Make Small Experiments a Routine Capability

Create lightweight experimental loops that turn curiosity into evidence, preserve responsible boundaries, and help teams learn before committing to larger bets.

research
evaluation
3m read
April 7, 2026article

Build an AI System as a Learning Laboratory

Connect runtime experiments, training gates, behavioral evaluation, performance suites, retained evidence, and documentation into one cumulative learning loop.

ai-systems
training
3m read
March 14, 2026article

Build Guidance That Learns From Its Own Outcomes

Turn reusable guidance into a learning product with time-aware attribution, evidence-linked evaluation, versioned amendments, and preserved lineage.

ai-systems
agents
3m read
March 12, 2026article

Build Trustworthy Behavioral Metrics from Layered Evidence

Layer normalization, deterministic observations, structured interpretation, semantic versions, and drilldowns to create behavioral metrics people can understand and use.

ai-systems
analytics
3m read
February 19, 2026article

Design an Improvement Workspace Around the Questions People Ask

A question-led domain map, connected evidence, progressive disclosure, reusable data mechanics, first-class actions, and measured outcomes turn fragmented tools into one improvement journey.

ai-systems
observability
3m read
February 18, 2026article

Build a Library of Reusable Agent Skills From Real Work

Evidence-backed triggers, bounded procedures, portable sources, scenario tests, progressive discovery, and active curation turn workflow lessons into durable shared capability.

ai-systems
agents
3m read
February 17, 2026article

Build a Learning Loop for AI Workflows

Privacy-aware traces, structured facets, complementary evaluation, human review, and measured improvements turn completed AI-assisted work into shared capability.

ai-systems
agents
3m read
February 13, 2026article

Design Products That Help People Build Mastery

Capability maps, useful challenge, layered assistance, explanatory feedback, reflection, honest progress, transfer, and increasing autonomy help products turn activity into durable human growth.

product-systems
product-design
3m read
February 9, 2026article

Turn Repository Knowledge Into Versioned Agent Skills

Scoped contracts, least-privilege evidence, deterministic validation, human review, sandbox evaluation, and maintained releases turn repository judgment into reusable agent capability.

ai-systems
agents
3m read
January 30, 2026article

Evaluate Long Work by the Progress It Makes Along the Way

Semantic checkpoints, distinct progress dimensions, evidence-led adaptation, and direct outcome verification make long-work evaluation useful and humane.

ai-systems
evaluation
3m read
January 25, 2026article

Make Every Evaluation Run a Reusable Learning Asset

Immutable run records, versioned evaluators, bounded evidence, append-only annotations, and compatible comparisons turn evaluation into compounding product knowledge.

ai-systems
evaluation
3m read
January 24, 2026article

Turn an Experiment Repository Into a Reproducible Learning Record

Decision-shaped questions, pinned environments, governed inputs, durable run manifests, validated outputs, compatible comparisons, and bounded findings make experimentation compound.

research
evaluation
3m read
September 13, 2025article

A Validated Benchmark Plan Still Needs Permission to Run

A benchmark plan should remain disabled until its inputs, prerequisites, approvals, isolated run boundary, activation steps, and scoring handoff are explicit and locally validated.

research
evaluation
3m read
June 15, 2025article

Reserve the Whole Evaluation Before Its First Call

Multi-step background work should reserve a complete bounded outcome before it begins, charge only unfinished dependencies, reconcile estimates with provider observations, and release unused capacity deliberately.

ai-systems
evaluation
5m read
May 30, 2025article

Say Exactly What the Evidence Stops Short Of

A practical framework for deriving useful conclusions without disguising missing evidence, especially when targets decompose, causes remain partly unknown, or sources conflict.

research
evidence
8m read
May 26, 2025article

Acquire the Full Candidate Population Before Choosing a Winner

A disciplined evidence strategy acquires the full candidate population and leaves selection, comparison, and recommendation to the controller.

research
search
7m read
May 25, 2025article

Translate Meaning Without Losing the Source Anchor

A rigorous evidence architecture lets models bridge lexical gaps while making exact, independently verified passages the final authority on claim coverage.

research
evidence
9m read
May 8, 2025article

Improve the Answer Without Changing the Assignment

A robust AI controller can use rejection feedback to improve an answer while preserving the user's original authority, completion criteria, and evidence obligations.

ai-systems
agents
7m read
May 4, 2025article

Research Completion Lives in the Evidence-to-Goal Map

Reliable research systems determine completion from evidence-backed goal parts, target follow-up at genuine gaps, and report unresolved work without overstating narrower findings.

research
evidence
5m read
April 18, 2025article

Parsing Is Not Publishing: Four Questions for Generated Prose

A successful generation is only a candidate: reliable publishing requires separate checks for syntax, grounding, editorial adequacy, and publishability, plus bounded retries and visibly unfinished fallbacks.

communication
content-engineering
4m read