hao li - DEV Community

hao li

Oct 21

I built a probe for the MCP cross-tenant leak that needs no attacker (CVE-2026-111770)

#bug #mcp #security #typescript

3 min read

hao li

Oct 21

Who Watches the Watchers? I Built a Tamper-Evident Seal for Agent Guardrails

#python #ai #agents #security

4 min read

hao li

Oct 21

I built a Claude Code skill that de-slops AI-generated web design

#ai #design #python #webdev

2 min read

hao li

Oct 21

I built a human approval gate my coding agents can't click themselves

#ai #python #opensource #security

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3 min read

hao li

Oct 21

Your coding agents aren't the problem. Your machine is.

3 min read

hao li

Oct 21

Every visa slot checker goes silent when the portal fights back. I built one that doesn't.

#webdev #javascript #opensource #productivity

3 min read

hao li

Oct 21

Your LLM provider can quietly downgrade your model, and nothing will tell you

#ai #llm #python #opensource

2

4 min read

hao li

Oct 21

Your API Gateway Rate Limit Can't See the Agent Looping Your Search Tool

#showdev #python #opensource

1

3 min read

hao li

Oct 21

ShellCheck Passed Every File. The Pipeline Was Still Broken.

#showdev #python #opensource

3 min read

hao li

Oct 21

I built the tool my agent-guard README said didn't exist yet

#showdev #python #opensource

2 min read

hao li

Oct 21

contradiction-judge: the memory auditor your AI agents are missing

#ai #python #agents #memory

1

2 min read

hao li

Oct 19

Your Claude Code skills are being silently demoted, and nothing tells you.

#showdev #python #opensource

3 min read

hao li

Oct 19

Your tag says v1.2.3. But is that really what you shipped?

#showdev #python #opensource

2 min read

hao li

Oct 19

Your Semantic Cache Has a Health Problem. Nothing Checks It.

#showdev #python #opensource

1

3 min read

hao li

Oct 19

worktree-janitor: clean up the git worktrees your dead agent sessions left behind

#git #python #agents #cli

1

2 min read

hao li

Oct 19

I pasted the same MCP server into 4 config files. Then I wrote a tool to clean up the mess.

#showdev #python #opensource

3 min read

hao li

Oct 17

Your Claude Code routine left 618 sessions behind. Mine deletes them while I sleep.

#showdev #python #opensource

3 min read

hao li

Oct 17

session-archive: back up Claude Code session logs before the 30-day auto-delete

#claudecode #devtools #python #ai

1 min read

hao li

Oct 17

canarygate: Catch the Gate That Quietly Stopped Discriminating

#claudecode #security #python #ai

3 min read

hao li

Oct 17

Your AI Shipped the App. Did It Leave the Keys in the Repo?

#showdev #python #opensource

1

3 min read

hao li

Oct 17

Stop finding out you're rate-limited mid-task. Check the headroom first.

#showdev #python #opensource

1

3 min read

hao li

Oct 15

css-slop-detector v0.2: from detecting AI slop to fixing it with one command

#css #python #ai #opensource

2 min read

hao li

Oct 15

Your MCP servers run real code. When was the last time you checked it for CVEs?

#showdev #python #opensource

1

3 min read

hao li

Oct 15

Stop Your Agent Fleet From Burning the Token Budget: subagent-budget-team

#showdev #python #opensource

1

2 min read

hao li

Oct 15

I Built a Bilingual "Mini-Uber" for My Dad's Escalade Business

#showdev #python #reactnative #fastapi

1

6 min read

hao li

Oct 13

I Bridged My Real Logged-In Browser to Chrome's New WebMCP API

#ai #javascript #python #opensource

2 min read

hao li

Oct 13

SkillJacking Is Real. I Built the Pinning Layer Skills Were Missing.

#python #ai #security #opensource

2 min read

hao li

Oct 13

Your .gitignore Won't Save Your Docker Image

#python #docker #security #devops

2 min read

hao li

Oct 13

1 in 5 AI-Suggested Packages Doesn't Exist — I Built a Scanner for That

#python #security #ai #supplychain

2 min read

hao li

Oct 12

Your Claude Code skills are being silently demoted. I built a CLI to catch it

#claudecode #cli #python #ai

1

3 min read

hao li

Oct 12

dlog v0.2: two gates for the decision log — one I can enforce, one I can't

#showdev #python #ai #agents

1

2 min read

hao li

Oct 12

pin-deep: you pinned your Actions, but your Actions didn't pin theirs

#showdev #python #githubactions #security

2 min read

hao li

Oct 11

rules-doctor 0.3: your CLAUDE.md might be lying to your agent

#claudecode #ai #promptengineering #python

1

2 min read

hao li

Oct 11

subagent-tax 0.3: the preamble re-enters every turn — and every subagent spawn re-pays it

#claudecode #ai #python #productivity

2 min read

hao li

Oct 11

readmeta v0.2: --fix rewrites your broken PyPI README links at build time

#python #pypi #packaging #opensource

2 min read

hao li

Oct 11

agent-guard 0.7: the legit-test-change escape hatch

#ai #python #claudecode #cli

2 min read

hao li

Oct 11

task-progress-mod v0.2: your agent's progress bar now summarizes tool output

#claudecode #ai #productivity #javascript

2 min read

hao li

Oct 11

Your Claude Code Plugin Passed Validation. That Proves Nothing.

#ai #python #cli #opensource

3 min read

hao li

Oct 11

deny-probe v0.4.0: Your Deny Rules Can't See the Payload — So I Test What It Does When It Wakes Up

#claudecode #security #python #ai

3 min read

hao li

Oct 11

session-handover v0.5: what survives compaction in 8 agent harnesses

#claudecode #codex #devtools #ai

2 min read

hao li

Oct 11

memgovern 0.5.0: a `memgovern audit` CLI that shows who your agent's memory trusts

#python #ai #agents #opensource

2 min read

hao li

Oct 11

mod-audit v0.2: the update is the attack — delta risk reports for Claude Code Mods

#security #python #opensource #ai

1

2 min read

hao li

Oct 11

mcp-tax 0.3: your MCP schemas are billed every turn, not once per session

#mcp #claudecode #python #ai

2 min read

hao li

Oct 11

mcp-lint v0.2: catching the near-duplicate tool names that make your agent confidently wrong

#python #mcp #ai #opensource

1

2 min read

hao li

Oct 11

My Subagents Were Eating 48% of My Tokens. So I Gave Them Hard Budget Caps — Enforced by Hooks, Not Dashboards

#ai #agents #python #productivity

1

3 min read

hao li

Oct 11

Your Skill's Frontmatter Has a Typo. Nothing Will Ever Tell You

#ai #python #cli #opensource

3 min read

hao li

Oct 11

Your MCP Config Is the Actual Security Boundary. Nobody Audits It

#security #python #ai #opensource

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3 min read

hao li

Oct 11

I Built an Offline Supply-Chain Auditor for Claude Code Mods (stdlib-only Python)

#security #python #opensource #ai

3 min read

Hacktoberfest Weekend Challenge: Build for a Friend Submission 🤝

hao li

Oct 4

My Parents Ran a Noodle Restaurant for 15 Years. They Never Read a Single Google Review.

#devchallenge #weekendchallenge #hf26challenge #gemma

4 min read

hao li

Oct 4

Your wheel can be a valid zip and still break installers. I built a checker for that.

#python #packaging #opensource #testing

1

2 min read

hao li

Oct 3

Your Package Has a License. Your Wheel Doesn't Say So.

#python #packaging #opensource #testing

3 min read

hao li

Oct 3

Your Python Package Installed. Its CLI Crashed on --help.

#python #packaging #opensource #testing

4 min read

hao li

Oct 3

Apple's Python Package Says 3.11. Its Wheel Requires 3.14.

#python #packaging #opensource #testing

3 min read

hao li

Oct 3

Google Published a PyPI Release Without Its Git Tag

#python #packaging #opensource #testing

1

3 min read

hao li

Oct 3

Git Can Track Two Files Your Mac Cannot Check Out

#python #git #opensource #testing

3 min read

hao li

Oct 3

Your Python Tests Passed. Your Published Wheel Is Missing Files.

#python #opensource #testing #packaging

3 min read

hao li

Oct 2

I stopped letting my agents guess ports

#claudecode #ai #devtools #python

2 min read

hao li

Oct 2

Your Subagents Are Re-Sending 51K Tokens Every Call. I Built a Tool to Prove It.

#claudecode #ai #python #productivity

2 min read

hao li

Oct 2

Your Claude Code Read Deny Rule Is a Screen Door — I Built a Tool That Proves It

#claudecode #security #python #ai

4 min read

hao li

Oct 2

Your CLAUDE.md Might Not Be Loading — I Built a Check-Up for That

#claudecode #ai #tooling #python

3 min read

2 Week Community Wellness Streak

1 Week Community Wellness Streak

Hacktoberfest 2026 Challenge Completion

Writing Debut

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