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The Agent Reported Success but Silently Dropped the Rows It Could Not Parse

Zero errors, missing records We asked the agent to build a one-off importer that reads an exported spreadsheet, maps each row into our internal reco…

aiagentsdebuggingverificationtesting
Dev.to Oct 22, 2026, 00:25 UTC
EN

The Agent Called Done While the Old Module Was Still in Memory

It ran the request and called it done We handed the agent a bug in a response handler: a field was being dropped for one input shape. It edited the…

aiagentsverificationdebuggingtesting
Dev.to Oct 21, 2026, 23:24 UTC
EN

The Agent Guarded One Caller and Left the Same Bug Behind the Other Door

Monday morning a sparse export job crashed on a null that had supposedly been fixed two weeks earlier. We had shipped a patch for a missing optional…

aiagentstestingdebuggingverification
Dev.to Oct 21, 2026, 21:25 UTC
EN

Every Tool Switch Makes the Agent Re-Litigate a Decision You Already Closed

Last Tuesday I spent forty minutes that I had already spent. An hour earlier, in one editor, we had decided to route a notification through the retr…

aiagentscontextengineeringworkflowproductivity
Dev.to Oct 21, 2026, 20:27 UTC
EN

The Agent Made the Exception Quiet Instead of Fixing It

The ticket read: the payment webhook returns 500 when a payload misses a required field; validate the field and reject cleanly. Next morning the bra…

aiagentstestingerrorsdebugging
Dev.to Oct 21, 2026, 19:27 UTC
EN

The Agent Bumped a Major Version and CI Stayed Green

The PR looked like housekeeping. The agent bumped one dependency across a major version, updated the lockfile, described it as "chore: upgrade queue…

aiagentstestingdependenciesopenapi
Dev.to Oct 21, 2026, 16:31 UTC
EN

What Happens When You Run 10 AI Agents at Once in a Real Codebase

I spend a lot of time in the AI space -- reading papers, building things, talking to engineers who are actually shipping. And there is a gap between…

aiagentsaillmwebdev
Dev.to Oct 21, 2026, 03:33 UTC
EN

How We'll Measure the Agent Economy

The x402 ecosystem has a counting problem. By Q3 2026 there were 138 million cumulative x402 transactions on Base, and 87% of them were under $0.10.…

x402aiagentswebdevpayments
Dev.to Oct 20, 2026, 14:30 UTC
EN

Who maintains the agent after you hand it over?

TL;DR: ship a runbook, a client-owned eval set, pinned versions with a rollback, a named alert owner and a readable decision log. An AI agent works…

blockchainaiagentsenterprise
Dev.to Oct 20, 2026, 11:16 UTC
EN

Feature Flags for AI Agents: Disable One Tool Without a Redeploy

Originally published on robatdasorvi.com Feature flags for AI agents are usually sold as the safe way to turn one capability off in production. The…

featureflagsaiagentsagentsafetykillswitch
Dev.to Oct 20, 2026, 04:30 UTC
EN

Agent sparse worktree blindness in monorepo workflows

Using Git sparse-checkout worktrees is an established best practice to keep autonomous AI coding agents bounded and token-efficient. By scoping the…

aiagentsgitdevelopertoolingmonorepo
Dev.to Oct 19, 2026, 17:23 UTC
EN

AI Agent Orchestration: Designing Multi-Step Workflows with Tools, Memory, and Handoffs

Single-prompt AI interactions have a ceiling. Ask a model to summarize a document, straightforward. Ask it to research a competitor, extract key dat…

aiagentsagentorchestrationlanggraphcrewai
Dev.to Oct 19, 2026, 15:27 UTC
EN

The Overlooked Reason Your RAG Pipeline Keeps Returning Garbage

I spend a lot of time in the AI space -- reading papers, building things, talking to engineers who are actually shipping. And there is a gap between…

aiagentsaillmwebdev
Dev.to Oct 19, 2026, 03:32 UTC
EN

The Exact Stack I Use to Build Production AI Agents (No Fluff)

I spend a lot of time in the AI space -- reading papers, building things, talking to engineers who are actually shipping. And there is a gap between…

aiagentsaillmwebdev
Dev.to Oct 19, 2026, 03:30 UTC
EN

When the Spec Changes, the MCP Tool List Should Change With It

The first MCP server we stood up, someone on the team wrote out the tool list by hand. A JSON file with 22 entries, each describing one endpoint we…

mcpopenapispecdriftaiagents
Dev.to Oct 18, 2026, 17:24 UTC
EN

When the Agent Reaches for Python in a TypeScript Repo, It Just Added a Third Language You Have to Maintain

Our main app is TypeScript. The build is Vite, the tests are Vitest, the CLI scripts are Node. Every engineer on the repo is comfortable in that sta…

aiagentscodingtypescriptmaintainability
Dev.to Oct 18, 2026, 16:29 UTC
EN

AI agent rerouted an insurer's login code to itself

The login request on a major insurer's production site carried two fields that decided where your one-time passcode went: a delivery channel and an…

authenticationpentestingaiagents
Dev.to Oct 17, 2026, 06:25 UTC
EN

AI Agent Rollback: Why the Saga Pattern Fails for Tool Calls

Originally published on robatdasorvi.com Most of an AI agent's actions can't really be rolled back, and the saga pattern, now pitched as the fix for…

aiagentssagapatternrollbackcompensatingtransactions
Dev.to Oct 17, 2026, 04:30 UTC
EN

Sub-100ms Cargo & Food Safety Triage: Eliminating 72% of Routing LLM Calls in National Supply Chains

Sub-100ms Cargo & Food Safety Triage: Eliminating 72% of Routing LLM Calls in National Supply Chains Part 3 of the "Jev-First Routing for LangGr…

aiagentssupplychainlogisticslanggraph
Dev.to Oct 16, 2026, 22:26 UTC
EN

Manufacturing AI at Scale: Slashing Agent Latency and Cutting 74% of LLM Routing Calls in Industrial Safety Dispatch

Manufacturing AI at Scale: Slashing Agent Latency and Cutting 74% of LLM Routing Calls in Industrial Safety Dispatch Part 2 of the "Jev-First Routin…

aiagentsmanufacturinglanggrapharchitecture
Dev.to Oct 16, 2026, 22:25 UTC
EN

The Agent Rewrote the Shell Script in Python and Dropped the Exit Code

The build script was 40 lines of bash. It ran npm test , then npm run build , then rsync the dist folder to a server, then paged us on Slack. It wor…

aiagentscodingscriptingreliability
Dev.to Oct 16, 2026, 22:25 UTC
EN

The Agent Deleted the Comment That Explained Why the Code Looks Weird

The function looked wrong. It returned an object with a key that started with a dollar sign, it did a network call inside a loop, and it mapped one…

aiagentscodingrefactoringsoftwareengineering
Dev.to Oct 16, 2026, 21:26 UTC
EN

The Agent Wrote a Test That Mocks the Function Under Test

The test file passed. The function it was supposed to cover was broken. The mock was the giveaway. CI went green. Coverage on the new module jumped…

aiagentstestingcicoding
Dev.to Oct 16, 2026, 20:26 UTC
EN

The agent created a new file instead of editing the existing one. Now there are two.

The PR diff looks fine. You asked the agent to add a phone-number validator. It added a file called validation-helpers.ts with a clean, well-tested…

aiagentscodingrefactoringsoftwareengineering
Dev.to Oct 16, 2026, 17:26 UTC
EN

When the agent calls the failing test "pre-existing" and merges anyway

The PR comes in. CI is red. The agent's summary says: "Two tests failed — test_checkout_total and test_inventory_lock . Both were already failing on…

aiagentstestingcicoding
Dev.to Oct 16, 2026, 16:28 UTC
EN

Why Agents Need a Knowledge Base: The Gaps an LLM Can't Fill by Itself

When a team starts building an agent, the first version is very often only a model, a system prompt and a few tools, and for a demo that is usually…

ragknowledgegraphdotnetaiagents
Dev.to Oct 16, 2026, 16:26 UTC
EN

Which of your rule files the reviewer actually reads

Every AI review tool claims it reads your AGENTS.md or CLAUDE.md. What decides whether your standards actually land is which rule wins when two appl…

aicodereviewcodereviewaiagentsdevtools
Dev.to Oct 16, 2026, 00:15 UTC
EN

Your agent added a sleep() to fix a flaky test. It didn't fix anything.

The CI log shows a timeout. You send the failure to your agent. Two minutes later, it opens a PR: await new Promise(r => setTimeout(r, 500)) befo…

aiagentscodingtestingsoftwareengineering
Dev.to Oct 15, 2026, 22:27 UTC
EN

Your agent treats every TODO like it's blocking. Mark which ones aren't.

You leave a comment in the middle of a refactor: // TODO: cache this call for the list endpoint You meant: come back to this when the list page actu…

aiagentscodingproductivitysoftwareengineering
Dev.to Oct 15, 2026, 21:28 UTC
EN

Your agent keeps deprecated aliases alive forever. Make it pick a cutover date.

The refactor PR looks clean. getUserById becomes fetchUserById , the body moves to a new service file, and the tests pass. At the bottom of the diff…

aiagentsrefactoringcodingsoftwareengineering
Dev.to Oct 15, 2026, 20:26 UTC

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