AI Tinkerers - Post-Training

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How to Build Antifragile Agents with OpenRouter

By Kenny Rogers · August 05, 2026 · 16 minutes · 2 photos

After Anthropic suspended Fable 5 (June 12–July 1, 2026), we built an antifragile billing agent that keeps working when models/providers fail by routing through OpenRouter presets and evaluated fallbacks. Using TypeScript code for money/policy logic and a 20-case synthetic eval (8 holdout), Grok 4.5 matched all decomposed cases (20/20) at 63% lower cost than Fable 5 ($0.0555 vs $0.1492) and Grok became primary while Fable stayed fallback. We store model order in an OpenRouter preset (no deploy needed) and use Router metadata/Broadcast to trace which model answered.

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What I Learned Giving Fable 5 a Face

By Ben Carr · July 30, 2026 · 11 minutes · 4 photos

Giving an avatar “a face” bottlenecks on interaction timing, not rendering: interruptions, turn-taking/ending cues (e.g., Turkish needed eager end-of-turn disabled), visible thinking time, and true audio-driven lip sync. With Anam bring-your-own-LLM, keep the system prompt short (1–2 spoken sentences) and stream Fable 5 tokens into the talk stream; Anam targets ~180ms response.

An infographic diagram illustrating the 'REACT LOOP' framework, divided into three categories: Skills, Agent types, and Runtime constraints.. Text: Primitives of Reef
skills - agent types - runtime constraints
REACT LOOP
Skills
• Procedural instructions
• Principles over N-shot examples
• Python bindings w/ decorators
— not separate schemas
• In-process invocations
— not bash subprocess
Agent types
• Parallel & sequential execution
• Planner for routing
• Specialists for compute
Runtime constraints
• Anti-hallucination constraints
• Convergence constraints
• Data access constraints
Architect your own domain specific framework

How to Write a Winning Agent Harness for Your Domain

By Hitesh Jain · June 24, 2026 · 13 minutes

If adding instructions makes your agent worse, it’s often a harness problem: we watched Reef/AlphaCumen collapse from a Vals v1 lead to zero on Vals v2 because prompts exceeded 2,500 lines and 50+ overlapping tools, causing token-budget timeouts. Reef fixes this with git-native, skills-first ReAct: skills bound by `SKILL.md` + `@skill_fn`, lazy-loaded skill indexes, planner specialist routing, and runtime constraints like `inject|clamp` as-of cutoffs. Result on finance evals (n=239): 82.6% pass rate with full structure vs 44.87% reference and 49.8% retrieval-only, at ~10× lower cost (620k tokens/query; $0.13 vs $1.35 at Opus 4.7).

A laptop sits open on a light wooden desk next to a mug, displaying the text 'AI TINKERERS LOCAL LLMS ON MAC' on its screen.. Text: AI TINKERERS
LOCAL LLMS ON MAC

How to Run Open-Source LLMs Locally on a Mac with MLX-LM

By Eric Fillion · June 12, 2026 · 8 minutes

Learn to run open-source LLMs locally on Mac Apple Silicon with Apple’s MLX-LM: install `pip install mlx-lm`, then `load()` a Hugging Face model and call `generate()` (optionally `stream_generate()`); examples show ~35.5 tok/s on an Air (smollm3-3b-mlx, ~2.6 GB peak) and ~79 tok/s on M4 Max (gpt-oss-120b-mlx, ~63 GB peak).

The image displays a stylized world map with glowing network lines connecting various points, overlaid with numerous small rectangular boxes containing images of people and text labels. Prominently in the center, large blue text reads "AITINKERERS" and "POST-TRAINING", suggesting an informational or promotional graphic.. Text: AITINKERERS
"POST-TRAINING"
PALLADIUM
ELENIOM
BANDICAM
GARDENWARE
MOI AFARLE
ENIGMA
NO FARM IN RAIN CINE PLENIUR
Mianny Hotel
FREELANCE
ALPHONSO
S. Africa
THE FUGA
AL PRUUCE MAGNA COREM ABDUILE BERLLINE ME CEULANTEPIC AN
[numerous other small, unreadable labels and names]

Top AI Demos #30: Clinical Co-Pilots, Pull Agents, and Life Planners

June 08, 2026 · 1 minute · 81 photos

This roundup highlights three AI directions: clinical co-pilots for healthcare workflows, “pull agents” that proactively retrieve needed information, and life planners that translate goals into actionable plans. Thanks to everyone building these tools—share your real-world wins and what’s working.

The image displays a stylized world map with glowing network lines connecting various points, overlaid with numerous small rectangular boxes containing images of people and text labels. Prominently in the center, large blue text reads "AITINKERERS" and "POST-TRAINING", suggesting an informational or promotional graphic.. Text: AITINKERERS
"POST-TRAINING"
PALLADIUM
ELENIOM
BANDICAM
GARDENWARE
MOI AFARLE
ENIGMA
NO FARM IN RAIN CINE PLENIUR
Mianny Hotel
FREELANCE
ALPHONSO
S. Africa
THE FUGA
AL PRUUCE MAGNA COREM ABDUILE BERLLINE ME CEULANTEPIC AN
[numerous other small, unreadable labels and names]

Top AI Demos #29: Agent Memory, Image Relighting & Software Testing

June 01, 2026 · 1 minute · 73 photos

In this week’s top AI demos (#29), explore three practical highlights: agent memory for smarter ongoing context, image relighting for dynamic lighting changes, and software testing workflows that help validate results faster. Thanks to everyone sharing these demos—great ideas to try and build on.

A promotional banner for 'homecrew', an open-source package manager for agent skills, featuring its logo and a terminal interface mock-up.. Text: homecrew
An open-source package manager for agent skills
~/work · zsh
$ crew install founding-engineer
✓ synced across Claude Code, Codex, Gemini
$ crew update
✓ team skills are current

Homecrew: An Open-Source Package Manager For Agent Skills

By Steve Krenzel · May 12, 2026 · 7 minutes

Homecrew is an open-source package manager for agent skills: a skill is a directory with a `SKILL.md`, and a tap is a git repo or local directory of skills. Install with `crew tap add …` + `crew install`, then `crew update` keeps skills synced across all detected agents (e.g., `~/.agents/skills/` and agent-specific dirs), including dependency installs and automatic tap-level updates via `crew autoupdate enable`.

The image displays a stylized world map with glowing network lines connecting various points, overlaid with numerous small rectangular boxes containing images of people and text labels. Prominently in the center, large blue text reads "AITINKERERS" and "POST-TRAINING", suggesting an informational or promotional graphic.. Text: AITINKERERS
"POST-TRAINING"
PALLADIUM
ELENIOM
BANDICAM
GARDENWARE
MOI AFARLE
ENIGMA
NO FARM IN RAIN CINE PLENIUR
Mianny Hotel
FREELANCE
ALPHONSO
S. Africa
THE FUGA
AL PRUUCE MAGNA COREM ABDUILE BERLLINE ME CEULANTEPIC AN
[numerous other small, unreadable labels and names]

⚡ See 24/7 Dev Agents + MCP Apps

April 20, 2026 · 1 minute · 59 photos

⚡ Explore 24/7 Dev Agents paired with MCP Apps—always-on agents that keep working and MCP apps that integrate smoothly—so your workflow stays active around the clock. Thanks for building with us and sharing what you’re testing!

The image displays a stylized world map with glowing network lines connecting various points, overlaid with numerous small rectangular boxes containing images of people and text labels. Prominently in the center, large blue text reads "AITINKERERS" and "POST-TRAINING", suggesting an informational or promotional graphic.. Text: AITINKERERS
"POST-TRAINING"
PALLADIUM
ELENIOM
BANDICAM
GARDENWARE
MOI AFARLE
ENIGMA
NO FARM IN RAIN CINE PLENIUR
Mianny Hotel
FREELANCE
ALPHONSO
S. Africa
THE FUGA
AL PRUUCE MAGNA COREM ABDUILE BERLLINE ME CEULANTEPIC AN
[numerous other small, unreadable labels and names]

⚡ Autonomous Software Factories + Agentic Security

April 13, 2026 · 1 minute · 25 photos

⚡ Autonomous software factories pair well with agentic security to help teams ship faster with safer builds. The key idea: use agents to automate parts of the software pipeline while applying security checks along the way, so reliability and protection stay built-in as work progresses.

The image displays a stylized world map with glowing network lines connecting various points, overlaid with numerous small rectangular boxes containing images of people and text labels. Prominently in the center, large blue text reads "AITINKERERS" and "POST-TRAINING", suggesting an informational or promotional graphic.. Text: AITINKERERS
"POST-TRAINING"
PALLADIUM
ELENIOM
BANDICAM
GARDENWARE
MOI AFARLE
ENIGMA
NO FARM IN RAIN CINE PLENIUR
Mianny Hotel
FREELANCE
ALPHONSO
S. Africa
THE FUGA
AL PRUUCE MAGNA COREM ABDUILE BERLLINE ME CEULANTEPIC AN
[numerous other small, unreadable labels and names]

⚡ Agent Version Control & Pipeline-Parallel LLMs

March 30, 2026 · 1 minute · 68 photos

Agent version control plus pipeline-parallel LLMs help teams iterate safely while scaling throughput. By tracking changes across agent versions and running models in parallel stages, you reduce risk and speed up experimentation—so workflows stay consistent as you push new ideas into production.

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What I Learned Deploying OpenClaw Beyond Demos

By Kaya Jones · March 15, 2026 · 11 minutes · 2 photos

After three months deploying OpenClaw beyond demos, the workflows that stick follow one shape: live inside tools you already use, carry context forward, and save time without babysitting. I built four systems—Robin’s nightly arXiv research (silence on weak results), a two-layer knowledge system (Obsidian facts + Honcho decision reasoning queried together), SnapshotClaw versioning for ~/.openclaw (configs/cron/skills/memory/plugins) to recover after 2AM breakage, and a Reachy Mini “brain” via Botwick that made the robot useful the next day (mic→VAD→STT→Claude→TTS).

The image displays a stylized world map with glowing network lines connecting various points, overlaid with numerous small rectangular boxes containing images of people and text labels. Prominently in the center, large blue text reads "AITINKERERS" and "POST-TRAINING", suggesting an informational or promotional graphic.. Text: AITINKERERS
"POST-TRAINING"
PALLADIUM
ELENIOM
BANDICAM
GARDENWARE
MOI AFARLE
ENIGMA
NO FARM IN RAIN CINE PLENIUR
Mianny Hotel
FREELANCE
ALPHONSO
S. Africa
THE FUGA
AL PRUUCE MAGNA COREM ABDUILE BERLLINE ME CEULANTEPIC AN
[numerous other small, unreadable labels and names]

AI Tinkerers #16: Vector DB Evolution & Persistent Agent Memory

February 23, 2026 · 1 minute · 48 photos

AI Tinkerers #16 dives into vector database evolution and persistent agent memory. The session highlights practical shifts in how embeddings are stored and retrieved, plus strategies for keeping agent context across sessions—so builders can design more reliable, stateful AI systems.

The image is a screenshot of a social media post, likely from X (formerly Twitter), featuring a user's profile, a long text post discussing 'evals' in the context of AI and coding companies, and an embedded preview of a video or web page with a transcript.. Text: swyx
@swyx
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Claude Code: no evals
[well known code agent company]: no evals
[well known code agent company 2]: kinda halfassed evals
[leading vibe coding company]: no evals
[ceo of company selling you evals]: mmmmm yess all my top customers do evals, you should do evals
[vc's in love with ceo of evals company]: mmmmm yess all my top founders do evals, must do evals
(NOTE: i -do- also think that evals are impt, but the eval pilled ai engineers have also noticed that it is not a strict requirement for success and, at least for 0-to-1 stage, may even be anticorrelated, think thru why)
(4) The future of agentic co...
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Transcript of The future of a...
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1:00
evals
- Yeah, so the best eval in some sense is
the one that most looks like real life.
And in that case, just using it gives you the
best result.
- We tried really hard, when building Claude
Code, to build a product evals.
- Yeah

Your Conversation Is Out Of Distribution

By Kwindla Hultman Kramer · September 11, 2025 · 8 minutes · 4 photos

Voice agents are hard because most use cases are long, multi-turn conversations and people don’t talk like they write, so LLM performance degrades over turns. Use context engineering + state machines (system prompt, conversation summary, limited tool list, next states). For confidence: do earnest manual testing, then lightweight/repeatable evals. I benchmarked a 30-turn voice scenario with ~75k-token context: every model had errors.

A screenshot of a dark-themed integrated development environment (IDE) displaying Rust programming code, with line numbers and syntax highlighting. On the right, a communication thread is visible, discussing the code's indentation levels and an embedded image of code.. Text: alex
1 month ago in # random - image.png
executor.rs
task_attempts.rs
claude.rs
amp.rs M
db.sqlite
backend > ~/bloop/vibe-kanban/backend/src/executor.rs tor for AmpExecutor > normalize_logs > [@] proce
26 impl Executor for AmpExecutor {
91 fn normalize_logs(
130 let processed = if let Some(msg_type) = json.get("type").and_then(|t|
entries.push(
timestamp: None,
entry_type:
NormalizedE
tool_nam
.to_
action_t
}
Thread
alex Jul 10th at 3:34 PM
amp.rs has 20 levels of indentation
image.png
1 reply
Louis Knight-Webb Jul 10th at 3:49 PM
Probably the most AI generated part of the codebase
Reply...
Also send to # random

70K Lines Later: What We Learned Vibe-Coding a Real App

By Louis Knight-Webb · August 19, 2025 · 4 minutes · 4 photos

Vibe Kanban showed how to ship a real CLI-built app: we capped PRs to <400 LOC and <10 files with a dedicated planning step (affected files, schema changes, test plan), used ts-rs to enforce shared Rust↔TS types via CI regeneration, ran agents in fresh per-session SQLite dev environments, and enforced separation of concerns with Rust crate boundaries (API can’t import SQL/git).

The image displays a conceptual diagram or flowchart illustrating the process of a 'Coding Agent'. It shows a sequence of steps including getting a task, adding it to a list, performing the task, reflecting on the output, and finally producing an output, with some feedback loops.. Text: Coding Agent
Get task
Add to task list
Do Task
Reflect on output
Output

Claude Code: Tips and Tricks

By Anand Tyagi · August 14, 2025 · 22 minutes · 9 photos

Claude Code is an agentic CLI that loops through task → subtasks → execution → reflection, producing files, text, and bash commands; to get strong results, use Anthropic’s Explore/Plan/Execute/Commit, keep context clean with `CLAUDE.md` (root + parents, plus subfolders), and reuse sessions via `/resume` and double escape (Esc+Esc); power up with custom slash commands, subagents, and hooks, plus MCP servers and GitHub integration via `install-github-app` and `@claude`.

A digital illustration depicting a four-step process flowchart titled 'Creating an AI Agent Dynamically'. It outlines the stages from a user request to the deployment of a custom AI agent.. Text: Creating an AI Agent Dynamically
1
User Request
User submits a request for a specific AI agent.
2
Request Analysis
AI analyzes the request and selects necessary tools.
3
Authentication
User authenticates tools for secure access.
4
Agent Deployment
Custom AI agent is generated and deployed for use.

We Built the Lovable for AI Agents - Here’s How

By Karan Vaidya · August 07, 2025 · 11 minutes · 3 photos

We built Lovable for AI Agents because agent building gets stuck on framework choices, tool/auth integration, model selection, and orchestration—so we skip that and generate a working agent in under 10 minutes. Using Composio’s managed tools (execution + authentication for 500+ apps), the app analyzes your use case, selects tools (e.g., Gmail Fetch Emails + Notion Create Page), creates connections via `/api/create-connection`, then dynamically generates a custom frontend + Next.js backend via `/api/generate-agent` for instant deployment.

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