Changelog
Changelog
Notable changes to this site — new sections, content, and improvements.
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Three new AI Blog posts: voice agents, agent memory, and durable execution
- Added "ElevenLabs vs Vapi vs Retell vs OpenAI gpt-realtime" — a four-way comparison of voice-agent platforms organized around who owns the audio path.
- Added "Mem0 vs Letta vs Zep vs Cognee" — a four-way comparison of agent-memory infrastructure built around the thesis that storage isn't the moat, ranking is.
- Added "Temporal vs Inngest vs Restate vs Cloudflare Workflows" — a four-way comparison of durable-execution engines, the runtime layer that keeps long-running agents alive.
- New tags: voice-agents, realtime, durable-execution.
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Three new AI Blog posts: computer use, MCP at scale, and the June 2026 frontier refresh
- Added "Claude Computer Use (post-Vercept) vs Codex Background CU vs Operator vs Gemini" — a four-way architectural comparison of how each lab lets AI drive the mouse, with OSWorld scores and a deployment-vs-safety matrix.
- Added "MCP at 97 Million Downloads" — an essay on how the Model Context Protocol crossed into mainstream agent infrastructure, with the Pinterest production case and the 2026 roadmap.
- Added "Claude Mythos 5 vs GPT-5.6 vs Gemini 3.2 vs Qwen 3.7 vs DeepSeek V4.1" — a refresh comparing five frontier-tier models that all shipped inside a two-week window in June 2026.
- New tags: computer-use, browser-agents, mcp, protocols, ecosystem, closed-source.
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New AI Blog pair: AI in the Trading Stack + Agentic AI for Trading Research
- New AI Blog post — AI in the Trading Stack: the four-layer map (signal, sizing, execution, risk), which ML technique dominates each, the failure modes that bite each, and a 2024 alpha-uplift bar chart that puts the SEC +12% and PwC +20% numbers on the same axis. Five diagrams, FAQ with FAQPage JSON-LD, bilingual en/zh, cross-links into RL deep-dives, supervisor-worker pattern, debate-and-ensembles, evals 101, guardrails 101.
- New AI Blog post — Agentic AI for Trading Research: the agent-firm pattern from TradingAgents (analyst → bull/bear debate → trader → risk supervisor), the tool surface and memory split a trading agent needs, BloombergGPT vs FinGPT vs prompted general LLM, and what LiveTradeBench's 50-day live evaluation revealed about LMArena rank not predicting P&L rank. Five diagrams, FAQ with FAQPage JSON-LD, bilingual en/zh, cross-links into multi-agent topologies, supervisor-worker pattern, debate-and-ensembles, agentic retrieval, structured tool I/O, and the companion landscape post.
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New AI Blog post: four coding-agent token trackers compared
- Added "ccusage vs codex-usage-tracker vs CodeBurn vs LiteLLM proxy" — a diagram-driven comparison organized around the telemetry trail each coding agent leaves behind: ccusage parses Claude Code and Codex JSONL, codex-usage-tracker indexes Codex token-count events behind an MCP surface, CodeBurn reads 25 agents’ on-disk stores, and a LiteLLM proxy meters live API traffic for Aider and anything else you point at it.
- Adds a per-agent "how to actually save tokens" section (prompt-cache hits, model routing, context resets) and a decision table for picking a tracker by the agent you run — plus current notes that Cursor now bills against a token-based dollar pool rather than per request, and that Aider does leave a (prose) trail on disk.
- New tags: cost, tooling.
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Cross-links between the four trading + open-weights posts
- Cross-linked the four adjacent posts so the trading-stack landscape, the agentic-research deep dive, the RL-trading-framework comparison, and the open-weights flagship comparison each surface the others from their "Further reading" lists — making the LLM-and-RL split of the agentic trading stack legible as a set rather than four isolated essays. Bilingual en/zh, content-only edits, no SVG or layout changes.
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New AI Blog post: four RL-for-trading frameworks, compared
- Added "FinRL vs TensorTrade vs ABIDES-Gym vs ElegantRL" — a diagram-driven comparison built around the one question the feature lists hide: who owns the simulation contract (action shape, fill model, slippage, reward, episode boundary)?
- Substituted ABIDES-Gym (J.P. Morgan AI Research) for the stale "MarketGym" label as the LOB / microstructure peer, documented explicitly in the post.
- New tags: reinforcement-learning, trading.
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New AI Blog post: four open-weights frontier flagships, compared on the axes that actually differ
- Added "Llama 4 vs DeepSeek V3 vs Qwen3 vs Mistral Large 3" — a diagram-driven comparison that argues the durable choice is the axis each lab is betting on (multimodal ecosystem vs inference economics vs language coverage vs permissive-license frontier intelligence), not the benchmark snapshot.
- Snapshot uses each lab's current mid-2026 open-weights flagship version (Llama 4 Scout/Maverick, DeepSeek V3.2, Qwen3-235B-A22B, Mistral Large 3); article calls out the version specifics inline.
- New tags: model-comparison, frontier-models, self-hosted.
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New AI Blog post: AFK coding
- New AI Blog post — AFK coding: a six-phase pipeline that splits judgment (spec, review) from execution (vertical slices, Ralph loop, refactor, agentic QA). Three new diagrams (hero pipeline, vertical-vs-horizontal slicing, Ralph cycle), an FAQ, bilingual en/zh, cross-links into concepts / field-guide / deep-dives / the coding-agent comparison post.
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New AI Blog post: four code-execution sandboxes for agents compared
- Added "E2B vs Modal vs Daytona vs Anthropic Code Execution" — a diagram-driven comparison built around the one question the marketing pages hide: who owns the sandbox lifecycle?
- New tags: sandboxing, code-execution, infrastructure.
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New AI Blog post: four evals + observability platforms compared
- Added "LangSmith vs Braintrust vs Helicone vs Arize Phoenix" — a diagram-driven comparison built around the loop each tool was designed to close: LangSmith the LangChain dev loop, Braintrust the CI eval loop, Helicone the production gateway loop, Arize Phoenix the OTel-native monitoring loop.
- New tags: observability, evals, infrastructure.
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New AI Blog post: four vector stores for agentic RAG, compared
- Added "pgvector vs Pinecone vs Weaviate vs Qdrant" — a diagram-driven comparison built around the one question the feature lists hide: where does the index sit relative to your primary data?
- New tags: rag, vector-databases, infrastructure.
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New AI Blog post: four coding agents compared
- Added "Claude Code vs Codex CLI vs Cursor Agent vs Aider" — a diagram-driven comparison of the four decisions that actually separate coding agents: sandbox & filesystem trust, planning loop shape, tool catalog vs the shell, and commit policy.
- New tags: coding-agents, developer-tools.
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New AI Blog post: Getting Started with OpenHuman
- Hands-on getting-started guide for OpenHuman (v0.56.0) — install paths for macOS/Windows/Linux, the first-run onboarding flow, how the Memory Tree gets built, and an honest local-data / managed-services trust model. Three new diagrams, an FAQ, bilingual en/zh.
- Correction to the OpenClaw vs OpenHuman vs Hermes Agent comparison: softened the "local-only" framing to the accurate local-data / managed-services model, and refreshed OpenHuman’s star count to reflect its climb past 29,000.
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New AI Blog post: four agent-orchestration frameworks compared
- Added "LangGraph vs CrewAI vs Claude Managed Agents vs OpenAI Agents SDK" — a diagram-driven comparison built around the one question the feature lists hide: where does your agent's state actually live?
- New tag: orchestration.
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Reading-path callout extended to Playbooks and Operations
- Playbooks and Operations indexes now show the same one-line "New here? Start with Concepts →" redirect that already appears on Deep-Dives, with section-appropriate phrasing — so newcomers landing on applied or production content get pointed at the foundations first.
- Component now accepts mode: 'concepts' | 'deepDives' | 'playbooks' | 'operations'. The three one-liner modes share rendering and only differ in copy (sourced from each section's readingPath block in src/i18n/ui.ts).
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Retrieval & RAG: five new deep-dives (hybrid search, parsing, query understanding, agentic retrieval, evaluation)
- Expanded the Retrieval & RAG deep-dive group from 2 to 7 entries, covering the gaps between the existing 101 concepts and the previously-published advanced-architectures and GraphRAG essays.
- Hybrid Search & Reranking — why one retriever is not enough, reciprocal rank fusion across BM25 + dense, the two-stage retrieve-then-cross-encoder pattern, and when ColBERT-style late interaction pays.
- Document Parsing & Ingestion Quality — the upstream bottleneck most teams underestimate: layout-aware parsing, tables, OCR, structural chunking, and vision-RAG (ColPali) as an escape hatch.
- Query Understanding & Transformation — the pre-retrieval lever set: rewriting, decomposition, multi-query, HyDE caveats, step-back prompting, and routing.
- Agentic Retrieval — search as a tool the model calls iteratively, with budget, stopping criteria, and the new failure modes (looping, drift, premature stop) that come with handing the model the steering wheel.
- Evaluating RAG — score retrieval, grounding, and answer quality as three separate things (recall@k, faithfulness, answer relevance), with a minimum viable eval recipe and the LLM-judge caveats.
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Reading-path callout on Concepts and Deep-Dives index pages
- Concepts index now opens with a "New here?" callout that names a five-entry core reading path (LLM → agent → loop → tool-calling → RAG) as a chip-list, plus an escape line pointing at the guided Field Guide.
- Deep-Dives index shows a one-line redirect: "These essays assume Concepts fluency — new here? Start with Concepts →" so newcomers do not bounce off a flat list of advanced essays.
- Copy lives in src/i18n/ui.ts (bilingual); the five core slugs are exported as CORE_PATH_SLUGS from the Concepts manifest, so renaming an entry only touches one file. Closes #46.
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Search modal: dark-mode legibility + visual polish + scroll fix
- Fixed invisible search input text in dark mode — the override pinned background but not color, so the typed query rendered in the user-agent default near-black on the dark background (#69).
- Replaced the user-agent button/fieldset chrome around the Clear button and Section filter with the site's own monospace small-caps language, and resized the Clear button from a full-height boxy rectangle to a small pill centered inside the input.
- Swapped the input's default blue focus outline for an accent-colored ring, and routed the "Section" label through JetBrains Mono uppercase to match other section labels on the site.
- Fixed: the modal could not be scrolled after "Load more results" — body scroll is locked while the modal is open, but the modal itself had no overflow. Added overflow-y: auto on the modal so the growing results list scrolls, and pinned the ✕ close button to the viewport so it stays reachable.
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Retrieval & RAG: new deep-dive on choosing a vector database
- Adds a constraint-first deep-dive for the most overdone decision in modern RAG engineering — what a vector DB actually is, the axes that genuinely differ between products, just enough ANN internals to read a vendor pitch, the landscape by category not brand, and a one-page selection procedure. Closes #66.
- Bottom line: most teams end at Postgres + pgvector or OpenSearch (because they already run one), Pinecone/Turbopuffer (because they have no ops headcount), or Qdrant/Milvus/Weaviate (because they need the tuning surface). Pick category first; brand within a category is a taste-and-pricing question.
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Introducing AI Blog — and an open-source agent shootout
- New top-level "AI Blog" section — long-form posts, comparisons, and field notes, with chronological feed, tag pages, and a bilingual en/zh mirror.
- First post: OpenClaw vs OpenHuman vs Hermes Agent — three architecture deep-dives, five cross-cutting comparisons, ten diagrams. Same post in English and Chinese.
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Added P0 Concepts: prompt injection, guardrails, evals
- Three beginner-friendly Concepts mirrors of the deeper material under Operations and Evaluation — closes the launch-coherence gaps called out in the IA expansion backlog.
- Entries: prompt-injection-101 (Agentic AI), guardrails-101 and evals-101 (Building Blocks).
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Added P0 Operations: feature flags, kill switches, online vs offline evals, per-customer economics, EU AI Act, NIST AI RMF, agent identity, scoped credentials
- Eight new Operation entries close the launch-coherence gaps the IA expansion flagged for Operations.
- AgentOps: feature-flags-for-agents, kill-switches. Eval & Obs: online-vs-offline-evals. Economics: per-customer-economics.
- Governance: eu-ai-act-for-agents, nist-ai-rmf-for-agents. Safety: agent-identity, scoped-credentials-for-agents.
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Added P0 Playbooks: finance, healthcare, legal, browser, IDE, outbound voice, progressive-disclosure UX
- Seven new Playbook entries close the launch-coherence gaps the IA expansion flagged for Playbooks.
- Domain playbooks: finance-agents, healthcare-agents, legal-agents.
- Coding & UX: browser-agents, ide-agents, outbound-voice-agents, progressive-disclosure-ux.
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Site enhancements: OG cards, dark mode, in-page TOC, search filters
- Every page now ships an og:image and twitter:image. Each top-level section (Field Guide, Concepts, Deep-Dives, Playbooks, Operations, Changelog) has its own bilingual 1200×630 card.
- Twitter card upgraded from `summary` to `summary_large_image`.
- Canonical site URL switched from agentic-ai-wiki.vercel.app to menuagentic.com — also fixes og:url, sitemap, and hreflang.
- New `npm run og:build` regenerates all 14 PNGs from a single template via Satori + resvg-js. Adding a new section is a one-line change in src/content/og.ts.
- Dark mode: a three-state toggle (light / dark / auto) in the header. Defaults to your OS preference; click cycles through. True-black palette (#000 background) on OLED-friendly displays.
- Theme choice persists in localStorage and survives EN ↔ 中文 switches. No flash of wrong theme on reload (inline pre-paint guard).
- Search results can be filtered by section (Field Guide / Concepts / Deep-Dives / Playbooks / Operations / Changelog) via Pagefind filters added to detail pages.
- In-page "On this page" TOC on long-form entries — Field Guide chapters, Concepts, Deep-Dives, Playbooks, and Operations. Scroll-spies the active heading; hides automatically when fewer than 3 headings exist.
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Copy buttons on every code block
- Every standalone code block now has a clipboard copy button with bilingual aria-label.
- Authors can opt into a top-left language badge by adding data-lang="python" (or similar) to the <pre> tag.
- Respects prefers-reduced-motion; copy/badge are excluded from search.
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Restructured site IA — added Playbooks and Operations sections
- Top nav grows to 7 items: Field Guide / Concepts / Deep-Dives / Playbooks / Operations / Changelog / About.
- Deep-Dive essays moved to /<section>/<group>/<slug> URLs (group is now in the URL); old /deep-dives/<slug> links no longer resolve.
- Each section and group now has a dedicated landing page with a thesis line and reading order.
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Cross-page links between related topics
- Added inline cross-reference links inside Concepts and Deep-Dives pages so a reader who hits a term — RAG, the agent loop, embeddings, tool calling, prompt injection — can jump straight to the page that explains it, in the same language.
- Links are restrained: only the first natural mention per page, only when a strong target exists, with a subtle accent underline that stays out of the way of reading.
- Proposed a site-wide navigation/information-architecture plan (grouping, "start here" path, related-pages and concepts↔deep-dives mapping) for review as a follow-up.
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Internal: Deep-Dives manifest as one-file-per-group
- Refactored the Deep-Dives manifest to one file per group under src/content/deep-dives/groups/, aggregated at build time. Concurrent PRs that add new groups no longer collide on this module, matching the changelog refactor.
- No user-facing change — the Deep-Dives index renders the same groups and entries in the same order; the public manifest API (ENTRIES, entryBySlug, entryTitle, groupedEntries) is preserved.
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Domain Playbooks: applying agents in five verticals
- New Deep-Dive group "Domain Playbooks" — 6 opinionated, checklist-ending guides: customer-support agents, data & analytics agents, DevOps & SRE agents, research & synthesis agents, sales & GTM agents, and a meta-essay on adapting a playbook to your own domain.
- Each playbook follows one method — define the job by its dominating failure, set autonomy by reversibility, ground via tools, pick an eval that mirrors the business cost, and bound the top failure mode — and ends with a reusable checklist and an honest tradeoff.
- Recurring themes made concrete per vertical: the confidently-wrong output as the failure that matters, read-only / consent / approval gates as upstream constraints, and limits enforced in tool signatures rather than prompts.
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New Deep-Dive group: Economics & ROI
- New Deep-Dive group "Economics & ROI" — 6 essays: build vs buy vs orchestrate, agent unit economics, cost attribution & budgets, measuring agent ROI, pricing & packaging agent products, and where the economics breaks.
- Central thesis: token cost is the wrong unit — cost per successful task with the success rate in the denominator is what decides whether an agent is a business, and the economics invert (rather than erode) at retry storms, the long tail, escalation, the eval bill, and the silent-failure tax.
- Grounded in 2025–2026 sources: McKinsey State of AI ROI patterns, the cost-per-successful-task framing, the SaaS-vs-agent gross-margin shift (80–90% to 50–60%), and the 2.5–3.5× outcome-pricing rule of thumb.
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Governance & Compliance deep-dive group
- New Deep-Dive group "Governance & Compliance" — 6 essays: audit trails & provenance, policy enforcement & controls, the regulatory landscape, accountability & ownership, data governance for agents, and governance without gridlock.
- Distinct from the Safety & Security group: this group covers policy, audit, accountability and regulation — tamper-evident audit trails, policy-as-code enforced outside the model, risk-tiered regulation (EU AI Act shape, NIST AI RMF, ISO/IEC 42001), the named-operator accountability model, and data governance through the agent loop.
- Regulatory content is intentionally qualitative and is not legal advice; it maps the shape of obligations so engineers know what to ask qualified counsel.
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Multi-agent, coding, UX & reasoning coverage
- New Deep-Dive group "Multi-Agent Systems" — 6 essays: when to go multi-agent, topologies, supervisor/worker orchestration, debate/voting/ensembles, shared memory & the blackboard, and multi-agent failure modes.
- New Deep-Dive group "Coding & Computer-Use Agents" — 6 essays: coding agent architecture, repo navigation & code context, patch generation & test-driven loops, computer-use & GUI agents, sandboxing & safe execution, and evaluating coding agents.
- New Deep-Dive group "Agent UX & Human Interaction" — 6 essays: designing for trust & calibration, approval & confirmation UX, transparency & explainability, interruption/steering/handoff, progressive autonomy, and designing for failure & recovery.
- New Deep-Dive group "Reasoning & Test-Time Compute" — 6 essays: chain-of-thought, self-consistency & sampling, tree & graph of thought, verifier-guided search, inference-time scaling, and when reasoning helps vs burns money.
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Operations, evaluation & training coverage
- New Deep-Dive group "Evaluation & Observability" — 6 essays: why agent eval is hard, outcome vs trajectory eval, LLM-as-judge for agents, reading agent benchmarks critically, tracing & observability, and eval-driven development.
- New Deep-Dive group "AgentOps: Deploy & Operate" — 6 essays: durable state & resumability, concurrency & scaling, idempotency & side-effect safety, loop-level cost control, rollout/versioning/pinning, and incident response & runaway containment.
- New Deep-Dive group "Training Agentic Models" — 6 essays: prompt vs fine-tune vs RL, RLHF & RLAIF, RL for tool use, reward design & reward hacking, SFT/rejection sampling/distillation, and process vs outcome reward models.
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Full-text site search
- Added fast client-side search across the whole wiki, powered by a build-time Pagefind index over the published pages — no server, instant results.
- Open it from the new search control in the header, or with the "/" key (Cmd/Ctrl-K also works); press Esc to close. The search box and assets load only on first use to keep pages light.
- Search is locale-aware: English pages search English content and Chinese pages search Chinese content, and the search UI is fully bilingual.
- Mobile polish: the close control is now a comfortable thumb-sized target, and tapping outside the panel dismisses search just like on desktop.
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Tool & capability design coverage
- New Deep-Dive group "Tool & Capability Design" — 6 essays: tools as the agent's API and designing for the model, tool granularity & composition, schemas/contracts/defaults, error messages as prompts, tool docs & discoverability, and the four recurring tool-design anti-patterns.
- Grounded in 2025–2026 practice: Anthropic's tool-writing and deferred-loading guidance, the measured ~95%→~71% tool-selection accuracy drop under tool overload, and real consolidations (GitHub Copilot 40→13 tools, Block 30+→2 Linear tools).
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Voice & Realtime Agents deep-dive group
- New Deep-Dive group "Voice & Realtime Agents" — 6 essays: realtime agent architecture (cascade vs native speech-to-speech), the latency budget, turn-taking & barge-in, the STT/TTS/speech-to-speech stack, tool use & state in voice, and voice agent failure modes.
- Grounded in the 2025–2026 realtime landscape: speech-to-speech APIs (OpenAI Realtime / gpt-realtime, Gemini Live), semantic-VAD endpointing, sub-second turn budgets, and SIP/PSTN telephony constraints.
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About page & Changelog
- Expanded About into a multi-section bilingual page: mission, what's covered, who maintains it, and contributing & contact.
- Introduced this Changelog, replacing the unused Posts section; the home page now links the latest entries.
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Concepts & Deep-Dives sections
- Added the Concepts encyclopedia — 33 bilingual entries from AI foundations to the agent loop.
- Added Deep-Dives — 30 advanced bilingual essays on architectures, protocols (MCP/A2A), memory, and agentic security.
- Accessibility & SEO pass: skip link, WCAG-AA contrast, responsive header, structured data, sitemap.
- Surfaced the new sections as cards on the home page.
- Replaced the unused Posts section with this Changelog.
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RAG coverage expansion
- New advanced Deep-Dives: Advanced RAG Architectures, GraphRAG & Multi-Hop Retrieval, and RAG Pipeline Security — under a new "Retrieval & RAG" group.
- Refreshed the Concepts "what is RAG" entry to the current long-context-vs-RAG routing consensus.
- Field Guide updates: RAGAS evaluation vocabulary in the eval chapter; parent-document and late chunking in the retrieval chapter.
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Security hardening & AdSense
- Added security response headers: X-Content-Type-Options, X-Frame-Options, Referrer-Policy, and Permissions-Policy.
- Integrated Google AdSense site-wide and added ads.txt seller authorization.
- Hardened structured-data (JSON-LD) output against script-tag breakout.
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Chinese (中文) localization
- Full bilingual site: every page and all Field Guide chapters available in English and Chinese.
- Language switcher and localized navigation, metadata, and sitemap.
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Initial launch
- Launched the Agentic AI Wiki with the flagship Agentic AI Field Guide (22 chapters across 6 parts).