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595 FIELD NOTES · OCT 19, 2025 → SEP 30, 2026 · 347 DAYS · LONGEST QUIET STRETCH 100 DAYS
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September 2026
114 POSTS-
SEP 30, 2026
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SEP 28, 2026
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SEP 26, 2026
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SEP 25, 2026
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SEP 24, 2026
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SEP 23, 2026
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SEP 22, 2026
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SEP 21, 2026
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SEP 20, 2026
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SEP 19, 2026
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SEP 18, 2026
- Expensive Models at the Hub: Why Constraining Costs at the Root Beats Guarding Every Edge
- I Killed My Code Fork and Built a Daily Agent Pipeline Instead
- PowerShell Kept Blocking New Sessions: When Your Window Grid Doesn't See Non-Agent Windows
+8 more on SEP 18, 2026
- The 697-Second Queue That Was Hiding in Shared Infrastructure
- The Guard That Works But Can't Undo
- The Quota Error on the Wrong Stream
- The Small Annoyance That Exposed Our Capacity Ceiling
- Walking the Funnel: Manual Testing Beat a Week of Waiting
- When Enforcement Scatters, Data Silently Leaks
- When Parallel Sessions Overwrite Each Other's Work
- When Product Analytics Finds What Logs Miss
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SEP 17, 2026
Show the rest of September (58 more posts)
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SEP 16, 2026
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SEP 15, 2026
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SEP 14, 2026
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SEP 13, 2026
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SEP 12, 2026
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SEP 11, 2026
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SEP 10, 2026
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SEP 9, 2026
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SEP 8, 2026
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SEP 7, 2026
- I Built a Ledger Because Verifying Looked Too Expensive
- My Agent Kept Telling His Agent to Pull. There Was Nothing to Pull.
- Prototype Showed the Design. Reviewers Said Validate First.
+7 more on SEP 7, 2026
- The Acceptance Bar That No Implementation Could Ever Clear
- The Bot Block That Wasn't, and Seven Sessions Under My Editor
- The Git Rules That Survive Parallel Agents
- The Objection That Kept a Billing Bug Alive Was Never Checked
- Two Types of Scope Expansion, One Rule
- When Your Agent's Memory Silently Fails
- When Your Orchestrator Becomes the Worker
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SEP 6, 2026
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SEP 5, 2026
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SEP 4, 2026
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SEP 3, 2026
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SEP 2, 2026
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SEP 1, 2026
August 2026
95 POSTS-
AUG 31, 2026
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AUG 30, 2026
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AUG 29, 2026
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AUG 28, 2026
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AUG 27, 2026
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AUG 26, 2026
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AUG 25, 2026
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AUG 24, 2026
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AUG 23, 2026
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AUG 22, 2026
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AUG 21, 2026
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AUG 20, 2026
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AUG 19, 2026
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AUG 18, 2026
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AUG 17, 2026
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AUG 16, 2026
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AUG 15, 2026
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AUG 14, 2026
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AUG 13, 2026
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AUG 12, 2026
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AUG 11, 2026
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AUG 10, 2026
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AUG 9, 2026
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AUG 8, 2026
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AUG 6, 2026
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AUG 5, 2026
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AUG 4, 2026
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AUG 3, 2026
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AUG 2, 2026
July 2026
77 POSTS-
JUL 31, 2026
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JUL 30, 2026
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JUL 29, 2026
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JUL 28, 2026
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JUL 27, 2026
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JUL 26, 2026
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JUL 25, 2026
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JUL 24, 2026
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JUL 23, 2026
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JUL 22, 2026
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JUL 21, 2026
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JUL 20, 2026
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JUL 19, 2026
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JUL 18, 2026
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JUL 17, 2026
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JUL 15, 2026
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JUL 13, 2026
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JUL 12, 2026
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JUL 11, 2026
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JUL 10, 2026
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JUL 9, 2026
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JUL 6, 2026
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JUL 3, 2026
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JUL 2, 2026
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JUL 1, 2026
June 2026
73 POSTS-
JUN 30, 2026
- Coordinating Ten Agents That Share One Codebase
- Five Agents, One Git Checkout: Reasoning Through a Safe Branch Bump
- The Bug That Was Only Visible on Desktop
+6 more on JUN 30, 2026
- The Fix Half-Worked. Back It Out, Don't Ship It Looking Done.
- The Missing Filters Were a Drifted Default
- The Reviewer Who Actually Read the Code Found What Everyone Else Missed
- Voice, Tone, and Style Were the Wrong Gates
- We Ran a Security Scanner on Our Own Agent Config. It Scored a D. Every High Was Noise.
- When Your Own Guardrail Lies to You
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JUN 29, 2026
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JUN 27, 2026
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JUN 26, 2026
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JUN 25, 2026
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JUN 24, 2026
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JUN 23, 2026
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JUN 22, 2026
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JUN 18, 2026
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JUN 17, 2026
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JUN 16, 2026
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JUN 15, 2026
Show the rest of June (35 more posts)
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JUN 14, 2026
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JUN 13, 2026
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JUN 12, 2026
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JUN 11, 2026
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JUN 9, 2026
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JUN 8, 2026
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JUN 6, 2026
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JUN 5, 2026
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JUN 3, 2026
- A presence check is not type validation
- It Looked Exactly Like a Bot Swarm. It Was SQL Server Parameter Sniffing.
- My pinned app kept vanishing after every reboot, and it wasn't Windows being flaky
+7 more on JUN 3, 2026
- Separate Your Build Model From Your Review Model: Codex as Adversarial Reviewer
- The Ambient-Global Bug: When "Current Account" Is a Mutable Global Your Whole App Reads
- The CAPTCHA lockout you trigger yourself: when a wrong API endpoint hammers you to a 403
- The GoDaddy "No Public API" Myth: Reverse-Engineering the DCC Internal DNS Endpoint
- The Migration Flip That Took Down a Live Customer (and the Blast Radius I Could Measure in 12 Seconds)
- The stale credential that failed two different code paths at once
- The Whole Feature Was Built and Verified in Sandbox, Then Prod Said E00044: CIM Not Enabled
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JUN 2, 2026
- A warning is not a guard: make conflicting work stop before it overwrites Plain-language version
- Before adding a new option, ask whether the existing one is almost right
- rtk Wasn't Broken, It Was Unreachable: How I Found 366 Silent Failures in My AI Agent Sessions
+4 more on JUN 2, 2026
- The \"queue worker drains it\" story was vapor: the create command said NOT YET IMPLEMENTED
- The customer's own scraper IS the bot swarm you've been fighting
- The runbook said the domain was in account A. It was in account B. Verify ownership before touching live DNS.
- Uniform state is a clue, not a conclusion
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JUN 1, 2026
- Cloudflare Error 1014: The Cert Issued. The Page Didn't Load.
- Scope Is the Unit, Not Persona: Rethinking How You Load Context Into AI Agents
- The console window that flashed every 30 minutes: Interactive vs S4U scheduled tasks
+6 more on JUN 1, 2026
- The False 200: When Removing a Binding Reveals Your Verification Was Lying
- The Self-Updating Deploy Script That Has to Fail Once to Fix Itself
- tRPC 401 vs REST: when a reviewer's suggestion is right in substance, wrong in transport
- When a work queue stops telling the truth Plain-language version
- Where does the daemon live? Reusing a scheduled-task tick instead of always-on infra
- Why I Dropped Pull Requests on a Repo Only My Agents and I Touch
May 2026
95 POSTS-
MAY 30, 2026
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MAY 29, 2026
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MAY 28, 2026
- "The Whole Island Can't Reach Your Site": US Territories Are Separate Countries to Cloudflare
- An Off-Origin Caddy Relay for Bare-Domain SSL (Because Cloudflare Pro Won't Proxy Your Apex)
- Cloudflare Pro is a box of levers, not a managed service
+8 more on MAY 28, 2026
- Geo-blocking everywhere except the US and Canada, and the one clause that saves your SEO
- Give irreversible infrastructure identifiers an intentional name
- GPTBot vs OAI-SearchBot vs ChatGPT-User: blocking the wrong one deindexes you from AI search
- Parallelism Isn't Free: The Real Cost of Fanning Out Agents
- The GoDaddy reseller Catch-22: the account with the domains has no API, the API account has no domains
- The legacy server-variable bug that printed `undefined` instead of a value
- The Prod Box Was DDoSing Itself: An iCal Calendar Feature Looping Through the Public Edge
- Your CDN's default bot protection is blocking Googlebot and quietly bleeding your SEO
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MAY 27, 2026
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MAY 26, 2026
- A dry run is only useful when it checks the same things as apply Plain-language version
- Five firewall rules beat the proxy swarm, but the real bug was my blind spot
- Let AI suggest before you save
+5 more on MAY 26, 2026
- One mixed QA ticket can slow down every independent fix Plain-language version
- Operator, not IP: fingerprinting a 40,000-IP proxy swarm by its RIPE maintainer
- The dormant-project tripwire: make the unknown visible
- The epic said "Not started" while six tickets shipped under it: reading progress past a stale status table Plain-language version
- Whack-a-mole is a real strategy: firewall blocks as a legitimate holding pattern
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MAY 24, 2026
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MAY 23, 2026
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MAY 22, 2026
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MAY 21, 2026
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MAY 20, 2026
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MAY 19, 2026
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MAY 18, 2026
- A three-pass AI code review that kept finding real bugs
- Adding OpenTelemetry to a Classic ASP App Without Rewriting It
- Cloudflare Tunnel as a Windows scheduled task (and the visible-console bug I shipped)
+5 more on MAY 18, 2026
- Codex flagged my ONLINE=ON, my own probe said it was fine, and the server proved us both wrong
- My red CI was a lie: a deleted workflow haunted every push while nothing real ran
- The Index Seek That Was Actually a Half-Table Scan (5000x, on a 4M-Row geoIP Table)
- Three compounding bugs spawned a burst of near-identical tickets, and `tail -15` hid the evidence
- When a Seek Is a Half-Table Scan
Show the rest of May (48 more posts)
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MAY 17, 2026
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MAY 16, 2026
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MAY 14, 2026
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MAY 13, 2026
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MAY 12, 2026
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MAY 11, 2026
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MAY 10, 2026
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MAY 9, 2026
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MAY 8, 2026
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MAY 7, 2026
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MAY 3, 2026
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MAY 2, 2026
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MAY 1, 2026
April 2026
91 POSTS-
APR 30, 2026
- /add-dir Doesn't Reach Across Your Skills: The IDE-vs-CLI Claude Code Gotcha
- A Second Review Is Useful When You Record the Decision Plain-language version
- Avoid Unnecessary Date String Round Trips
+11 more on APR 30, 2026
- Bootstrapping a New Agent Station, and Giving It a Phone
- Don't Publish Into a Void: Baking Revenue Attribution Into the Schema on Day One
- I closed a client ticket from the wrong repo on purpose
- One Approval Whole Operation
- RTK Ate My JSON and Hid My Merge Commit: When a Token-Saving Filter Lies to Your Agent
- Same Root Cause Is Not Same Fix: Verify the Data Shape, Not Just the Symptom Plain-language version
- The One-Shot Data-Repair Script as a First-Class Artifact
- Turning a Stack of AI Transcripts Into Beats for Under a Dollar
- When a Content Workflow Needs Explicit State Plain-language version
- When a Manual Workflow Hurts in Seven Small Ways, the Seven Ways Are Your Spec
- When the System Cannot Know Intent, Make the Decision Explicit Plain-language version
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APR 29, 2026
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APR 28, 2026
- A Debug Flag I Flipped Three Years Ago Was Still On When I Shipped the Fix
- A var EDIT_DATABASE = false Sat in a Branch for 2.5 Years. Then We Shipped It.
- AI Can Only Say "Suggested": The Invariant That Keeps AI Triage From Flooding Your Team Plain-language version
+13 more on APR 28, 2026
- All Seven Reviewers Passed. The Writing Was Worse. Here's What Went Wrong. Plain-language version
- Before You Merge a Long-Idle Branch, Audit Its Temporary Scaffolding Plain-language version
- Closing a Ticket From a Machine That Never Cloned the Repo
- How to Triage an 880-Ticket Backlog Without Deleting Real Work Plain-language version
- I Was About to Write a digest_job.py. The Platform Already Shipped It.
- If Your AI Workflow Only Exists in Comments, You Have Exhaust Plain-language version
- Reverse-Engineering Claude Code's Session JSONL (So You Can Mine Your Own Transcripts)
- The Most Restricted Tool in My AI Pipeline Is the One That Writes the Output
- When a Workflow Gap Needs an Operator Tool: Preview, Policy, and an Audit Trail Plain-language version
- When the Paywall Flow Is Broken, Build the Staff Tool, With Dry-Run, a Cap, and an Audit Row
- Why Publication-Time Redaction Is Not a Privacy Program
- Your Committed Output Is a Free Golden Test Plain-language version
- Your JIRA Session Won't Cross Into an Iframe. Here's the Reused-Popup Workaround.
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APR 27, 2026
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APR 25, 2026
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APR 24, 2026
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APR 23, 2026
- "Bamboo is broken" was wrong: a deploy that races the filesystem under CPU pressure
- A Migration Became the Audit I Had Never Run
- My backups had been dead for three weeks. I found out by accident.
+7 more on APR 23, 2026
- Single-currency database, dual-currency checkout: adding CAD without a schema change
- The Auto-Approval Feature That Quietly Rewrote Curated Data Plain-language version
- The bot-swarm that broke the playbook: URL fan-out beats top-IP-by-volume
- The decorative database: when your blocklist table isn't actually on the request path
- The fastest fix was blocking the bot by name
- The UA blocklist is the right-sized fix for an identified crawler (and the wrong one for a swarm)
- UTC logs, a local clock, and the canary request: timezone discipline in an incident
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APR 22, 2026
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APR 21, 2026
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APR 20, 2026
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APR 19, 2026
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APR 17, 2026
Show the rest of April (31 more posts)
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APR 16, 2026
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APR 15, 2026
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APR 14, 2026
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APR 13, 2026
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APR 12, 2026
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APR 11, 2026
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APR 10, 2026
- A `?prototype=1` Flag and 23 Commits: Prototyping a Redesign in Production Code
- Classic ASP Doesn't Care That It's a Comment: The Script-Delimiter Collision
- Don't Trust the Green Deploy: Grep the Live File for Your Ticket Marker Plain-language version
+9 more on APR 10, 2026
- I Almost Built an Entitlement System for a Feature That Was Already a Page
- My AI Agent's Memory Was Per-Folder, So My Clones Never Learned From Each Other Plain-language version
- My Fix for a System Freeze Caused Its Own 16-Minute Freeze
- The attacker was our own redirect logic
- The Bundle-Ceiling Model: Separating Subscription and Per-Event Cost
- The call was coming from inside the house
- The Pricing Rewrite Only Got Real When I Wrote the Gates Plain-language version
- The rate-limiter that banned our power users: 302 to 200 redirects look like an attack Plain-language version
- Why schedules broke around March 4, 1973: a getTime() digit-count sort bug
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APR 9, 2026
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APR 8, 2026
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APR 6, 2026
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APR 5, 2026
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APR 4, 2026
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APR 3, 2026
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APR 2, 2026
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APR 1, 2026
March 2026
5 POSTS-
MAR 31, 2026
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MAR 28, 2026
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MAR 27, 2026
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MAR 25, 2026
- 26 QUIET DAYS
February 2026
32 POSTS-
FEB 27, 2026
- A 47,490-line JavaScript file and what it tells you about a profitable legacy app
- A New Feature Is the Best Fuzz-Tester for Your Existing Data Model Plain-language version
- Carry Your State in the URL, Then Actually Carry It: The Dropped Query Param
+6 more on FEB 27, 2026
- GetAccountFilter and the Case for an Explicit Context You Can Override Plain-language version
- Hand-rolled hydration: passing server state to the browser with no framework
- Routing Logic That Does Work on the Way In: Redirect, Auto-Select, or Prompt Plain-language version
- The ambient-global bug: when \"current account\" is a mutable global 100 call sites read
- The ambient-global bug: when current account is a mutable global your whole app reads
- The most valuable line in an agent's ruleset: verify the fix in the browser before claiming it's fixed Plain-language version
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FEB 26, 2026
- A Client Tree-Walk That Was Really a Server Business Rule
- An Evening of Progressive Disclosure: Four Commits to Hide Everything Behind 'Details'
- Moving Claude Code Off Your C: Drive: The 12.4 GB VM Bundle and the UWP Permission Wall
+4 more on FEB 26, 2026
- Reworking a vector-retrieval scoring formula: stop letting raw similarity be 100% of the base
- The Duplicated-Derivation Bug: One Fragile Expression in Four Queries
- Trading Badge Soup for One Human Sentence
- Writing an AI_CONTEXT.md So Your Assistant Stops Rediscovering Your Codebase Plain-language version
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FEB 24, 2026
- 'Newest First' Is a Re-Priority Problem, Not an ORDER BY Plain-language version
- A Tiptap Editor That's Invisible Until You Add ProseMirror's Base CSS
- AI Mutations Aren't Optimistic-UI Candidates: Make the 'Analyzing' State Honest Plain-language version
+7 more on FEB 24, 2026
- MOCK_INFERENCE=1: ship every LLM feature with an env-var kill switch on day one Plain-language version
- PayPal Pay-Later Messages Won't Re-Render, So Destroy the Node and Recreate It
- Same SHAs in Two Repos: Why Commit-Count Metrics Lie in a Clone Workflow Plain-language version
- Shipping a Whole Analytics Suite Into a Legacy ASP Admin
- Six Production Releases in One Day: Anatomy of a Hotfix Train
- Teaching the AI to Find the Real Source File: .cursor/rules as a Compiled-Asset Map
- Tiptap v3 Fires onFocus During Init, So Subscribe to the DOM Instead
- 5 QUIET DAYS
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FEB 19, 2026
- 7 QUIET DAYS
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FEB 12, 2026
- 15 QUIET DAYS
January 2026
12 POSTS-
JAN 28, 2026
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JAN 27, 2026
- 100 QUIET DAYS
October 2025
1 POST-
OCT 19, 2025