<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"><channel><title>Gutierrez Public Lab</title><description>Experiments, breakthroughs, and failures with real metrics</description><link>https://alejandro-gutierrez.com/</link><item><title>hook pipeline data integrity</title><link>https://alejandro-gutierrez.com/pitfalls/hook-pipeline-data-integrity/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/hook-pipeline-data-integrity/</guid><description>pitfall, hooks, data-engineering, OPERATIONAL</description><pubDate>Mon, 06 Apr 2026 00:00:00 GMT</pubDate></item><item><title>Scaling codeguard timeout dynamically based on file count and complexity (lines changed, AST depth) </title><link>https://alejandro-gutierrez.com/experiments/2026-04-04-adaptive-codeguard-timeout-scaling/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-04-04-adaptive-codeguard-timeout-scaling/</guid><description>Scaling codeguard timeout dynamically based on file count and complexity (lines changed, AST depth) will eliminate SessionEnd flush failures while keeping average timeout below 5 seconds for typical sessions</description><pubDate>Sat, 04 Apr 2026 00:00:00 GMT</pubDate></item><item><title>Merge/review time as a fraction of total session time grows superlinearly as the number of parallel </title><link>https://alejandro-gutierrez.com/experiments/2026-04-04-agent-merge-bottleneck-measurement/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-04-04-agent-merge-bottleneck-measurement/</guid><description>Merge/review time as a fraction of total session time grows superlinearly as the number of parallel Dakka agents increases beyond 4, confirming the Amdahl&apos;s Law prediction from the agent-scaling research</description><pubDate>Sat, 04 Apr 2026 00:00:00 GMT</pubDate></item><item><title>A pre-flight key validation step at server start that tests each API key against its service&apos;s auth </title><link>https://alejandro-gutierrez.com/experiments/2026-04-04-api-key-preflight-validation/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-04-04-api-key-preflight-validation/</guid><description>A pre-flight key validation step at server start that tests each API key against its service&apos;s auth endpoint will catch 100% of stale/invalid key errors before the pipeline begins processing</description><pubDate>Sat, 04 Apr 2026 00:00:00 GMT</pubDate></item><item><title>A ShellCheck + custom grep linter pass on all peon-notify hook scripts will find at least 3 addition</title><link>https://alejandro-gutierrez.com/experiments/2026-04-04-bash-strict-mode-audit/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-04-04-bash-strict-mode-audit/</guid><description>A ShellCheck + custom grep linter pass on all peon-notify hook scripts will find at least 3 additional arithmetic trap instances beyond the known peon-health.sh fix, and integrating it into the pre-commit hook will prevent future regressions</description><pubDate>Sat, 04 Apr 2026 00:00:00 GMT</pubDate></item><item><title>Applying the Karpathy ratchet methodology to jobs-apply&apos;s interview conversion rate (currently ~0%) </title><link>https://alejandro-gutierrez.com/experiments/2026-04-04-cross-project-dqi-ratchet/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-04-04-cross-project-dqi-ratchet/</guid><description>Applying the Karpathy ratchet methodology to jobs-apply&apos;s interview conversion rate (currently ~0%) will identify at least 3 lockable configuration improvements within 10 iterations</description><pubDate>Sat, 04 Apr 2026 00:00:00 GMT</pubDate></item><item><title>A post-deploy health check gate will catch silent deployment failures within one deploy cycle instea</title><link>https://alejandro-gutierrez.com/experiments/2026-04-04-deployment-verification-gate/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-04-04-deployment-verification-gate/</guid><description>A post-deploy health check gate will catch silent deployment failures within one deploy cycle instead of the 10-30 commit cascades observed in the Cloudflare, Vercel, and Railway pitfalls</description><pubDate>Sat, 04 Apr 2026 00:00:00 GMT</pubDate></item><item><title>Extracting the gaussian behavioral timing module from jobs-apply into a standalone npm package and a</title><link>https://alejandro-gutierrez.com/experiments/2026-04-04-gaussian-timing-extraction/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-04-04-gaussian-timing-extraction/</guid><description>Extracting the gaussian behavioral timing module from jobs-apply into a standalone npm package and applying it to pirate-ship API calls will reduce provider quarantine events by 50%+ without modifying the core application logic</description><pubDate>Sat, 04 Apr 2026 00:00:00 GMT</pubDate></item><item><title>Applying the Karpathy LLM Knowledge Base compilation pattern to a subset of vault notes (one article</title><link>https://alejandro-gutierrez.com/experiments/2026-04-04-llm-knowledge-base-compilation/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-04-04-llm-knowledge-base-compilation/</guid><description>Applying the Karpathy LLM Knowledge Base compilation pattern to a subset of vault notes (one article cluster) will produce higher-quality articles with better cross-linking than manual curation, while maintaining factual accuracy via provenance tracking</description><pubDate>Sat, 04 Apr 2026 00:00:00 GMT</pubDate></item><item><title>A rolling z-score anomaly detector (2-sigma threshold) on Claude Code session token costs will ident</title><link>https://alejandro-gutierrez.com/experiments/2026-04-04-session-cost-anomaly-detection/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-04-04-session-cost-anomaly-detection/</guid><description>A rolling z-score anomaly detector (2-sigma threshold) on Claude Code session token costs will identify runaway sessions with &gt;= 90% precision and &lt; 5% false positive rate</description><pubDate>Sat, 04 Apr 2026 00:00:00 GMT</pubDate></item><item><title>A three-stage retrieval pipeline (BM25 keyword filter -&gt; embedding rerank -&gt; LLM context window) wil</title><link>https://alejandro-gutierrez.com/experiments/2026-04-04-staged-retrieval-vault-search/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-04-04-staged-retrieval-vault-search/</guid><description>A three-stage retrieval pipeline (BM25 keyword filter -&gt; embedding rerank -&gt; LLM context window) will return relevant vault notes within 2 seconds for 609+ files, making real-time vault search from Claude Code practical</description><pubDate>Sat, 04 Apr 2026 00:00:00 GMT</pubDate></item><item><title>Google&apos;s TimesFM foundation model, applied to the sequence of DQI/Brier scores from ratchet iteratio</title><link>https://alejandro-gutierrez.com/experiments/2026-04-04-timesfm-plateau-detection/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-04-04-timesfm-plateau-detection/</guid><description>Google&apos;s TimesFM foundation model, applied to the sequence of DQI/Brier scores from ratchet iterations, will detect convergence plateaus 3-5 iterations earlier than the current human heuristic of &apos;no improvement for N consecutive runs&apos;</description><pubDate>Sat, 04 Apr 2026 00:00:00 GMT</pubDate></item><item><title>Deploying 10 targeted fixes across easy-apply.ts, linkedin-adapter.ts, and submit.ts will achieve 95</title><link>https://alejandro-gutierrez.com/experiments/2026-04-02-linkedin-run10-100-percent/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-04-02-linkedin-run10-100-percent/</guid><description>6/6 = 100% after select fix deployed. 9/13 total for the day (3/7 before fixes, 6/6 after). From Run 1 (40%) to Run 10 (100%) = 150% relative improvement across 10 iterations.</description><pubDate>Thu, 02 Apr 2026 00:00:00 GMT</pubDate></item><item><title>Proactive modal scrolling and CDP select placeholder detection will reduce timeout failures from dro</title><link>https://alejandro-gutierrez.com/experiments/2026-04-02-linkedin-run9-scroll-dropdown/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-04-02-linkedin-run9-scroll-dropdown/</guid><description>2/3 = 67% during quiet hours. 1 failure: 240s timeout on screening question dropdown (Databricks/Pyspark). CDP select detection identified the issue but fix wasn&apos;t deployed until Run 10.</description><pubDate>Thu, 02 Apr 2026 00:00:00 GMT</pubDate></item><item><title>Rewriting core orchestration in Rust (3 crates) will provide better performance and safety guarantee</title><link>https://alejandro-gutierrez.com/experiments/2026-04-02-rust-migration-phases-1-3/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-04-02-rust-migration-phases-1-3/</guid><description>14.8k total lines of Rust. All 3 crates compile clean. Ownership model eliminates PTY race conditions by design. Phase 4 (Tauri desktop) and Phase 5 (tests) remain.</description><pubDate>Thu, 02 Apr 2026 00:00:00 GMT</pubDate></item><item><title>A version-pinned sync mechanism between vault skills and mounted SKILL.md wrappers eliminates drift </title><link>https://alejandro-gutierrez.com/experiments/2026-04-02-skill-sync-system/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-04-02-skill-sync-system/</guid><description>First sync remediated 27 skills: 24 version drift (mounted had no version field), 3 unmounted (vault-only), 1 orphan (bloomnet-refresh promoted to vault). Post-sync: all 27 synced, 0 stale. Hermes patterns adopted: version manifest (simplified to version+hash vs MD5), SessionStart nudge (vs turn-counting), PostToolUse detection. Patterns skipped: background agent forks, security scanning, progressive disclosure.</description><pubDate>Thu, 02 Apr 2026 00:00:00 GMT</pubDate></item><item><title>Skill Sync: 27/27 skills version-pinned, drift detection deployed</title><link>https://alejandro-gutierrez.com/breakthroughs/2026-04-02-context-curator-skill-sync/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/breakthroughs/2026-04-02-context-curator-skill-sync/</guid><description>24/27 mounted SKILL.md wrappers had no version field. 3 vault skills unmounted. 12 description mismatches. -&gt; 27/27 synced and version-pinned. 0 stale. PostToolUse hook detects future drift in real time.</description><pubDate>Thu, 02 Apr 2026 00:00:00 GMT</pubDate></item><item><title>LinkedIn Easy Apply: 40% to 100% success rate in 10 runs over 18 days</title><link>https://alejandro-gutierrez.com/breakthroughs/2026-04-02-jobs-apply-100-percent-linkedin/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/breakthroughs/2026-04-02-jobs-apply-100-percent-linkedin/</guid><description>40% submission rate, Run 1, 2026-03-15 -&gt; 100% submission rate (6/6), Run 10, 2026-04-02. 150% relative improvement over 18 days.</description><pubDate>Thu, 02 Apr 2026 00:00:00 GMT</pubDate></item><item><title>agent memory bloat</title><link>https://alejandro-gutierrez.com/pitfalls/agent-memory-bloat/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/agent-memory-bloat/</guid><description>pitfall, ai-agents, KNOWLEDGE</description><pubDate>Thu, 02 Apr 2026 00:00:00 GMT</pubDate></item><item><title>circular knowledge corruption</title><link>https://alejandro-gutierrez.com/pitfalls/circular-knowledge-corruption/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/circular-knowledge-corruption/</guid><description>pitfall, ai-agents, KNOWLEDGE</description><pubDate>Thu, 02 Apr 2026 00:00:00 GMT</pubDate></item><item><title>rubric overfitting</title><link>https://alejandro-gutierrez.com/pitfalls/rubric-overfitting/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/rubric-overfitting/</guid><description>pitfall, ai-agents, DETECT</description><pubDate>Thu, 02 Apr 2026 00:00:00 GMT</pubDate></item><item><title>Fixing silent modal failures (F40), verification false negatives (F41), and stuck screening question</title><link>https://alejandro-gutierrez.com/experiments/2026-04-01-linkedin-run8-screening-fixes/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-04-01-linkedin-run8-screening-fixes/</guid><description>All three failure patterns addressed and deployed. F40 scroll fix prevents modal-bottom submit button from being out of viewport. F41 verification now waits longer and checks multiple signals. F42 handles non-standard form elements.</description><pubDate>Wed, 01 Apr 2026 00:00:00 GMT</pubDate></item><item><title>Behavioral anti-detection skill: bot-mimicry pattern extracted from LinkedIn crisis</title><link>https://alejandro-gutierrez.com/breakthroughs/2026-03-31-skill-behavioral-anti-detection/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/breakthroughs/2026-03-31-skill-behavioral-anti-detection/</guid><description>Account restricted, no systematic anti-detection approach, behavioral detection undiagnosed -&gt; Reusable skill: gaussian timing, reading simulation, mouse movement, session pacing. Account unrestricted. Transferable to any service with bot detection.</description><pubDate>Tue, 31 Mar 2026 00:00:00 GMT</pubDate></item><item><title>J-Score v2: three-layer fusion scoring, score clustering eliminated</title><link>https://alejandro-gutierrez.com/breakthroughs/2026-03-31-skill-j-score-v2/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/breakthroughs/2026-03-31-skill-j-score-v2/</guid><description>Single-layer LLM scoring (Gemini Flash), scores clustered 65-75 regardless of actual fit -&gt; Three-layer fusion scoring, 592 tests, 3742 backfilled scores, score audit logging, full score distribution</description><pubDate>Tue, 31 Mar 2026 00:00:00 GMT</pubDate></item><item><title>Monte Carlo pricing engine v17.2: R²=0.975, MAE=$0.83, Brier +11pp vs Polymarket</title><link>https://alejandro-gutierrez.com/breakthroughs/2026-03-31-skill-monte-carlo-pricing/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/breakthroughs/2026-03-31-skill-monte-carlo-pricing/</guid><description>v12: OOS R² 0.8633, MAE $1.633, 0/5 historical backtests passing -&gt; v17.2: OOS R² 0.975, MAE $0.833, Brier +11.21pp vs Polymarket, 82% win probability</description><pubDate>Tue, 31 Mar 2026 00:00:00 GMT</pubDate></item><item><title>R visualization pipeline: 108-check quality rubric, 9 chart families, 4 brand templates</title><link>https://alejandro-gutierrez.com/breakthroughs/2026-03-31-skill-r-visualization-pipeline/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/breakthroughs/2026-03-31-skill-r-visualization-pipeline/</guid><description>Ad-hoc ggplot2 scripts per chart. No quality standard. No brand consistency. -&gt; 9 chart families, 4 brand templates, 108-check automated quality rubric scoring BAD/OKAY/GOOD/EXCELLENT</description><pubDate>Tue, 31 Mar 2026 00:00:00 GMT</pubDate></item><item><title>html2canvas live dom mutation</title><link>https://alejandro-gutierrez.com/pitfalls/html2canvas-live-dom-mutation/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/html2canvas-live-dom-mutation/</guid><description>pitfall, dom, screenshot, RENDER</description><pubDate>Tue, 31 Mar 2026 00:00:00 GMT</pubDate></item><item><title>log buffer requeue on flush failure</title><link>https://alejandro-gutierrez.com/pitfalls/log-buffer-requeue-on-flush-failure/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/log-buffer-requeue-on-flush-failure/</guid><description>pitfall, logging, data-loss, STATE</description><pubDate>Tue, 31 Mar 2026 00:00:00 GMT</pubDate></item><item><title>log session header write mode</title><link>https://alejandro-gutierrez.com/pitfalls/log-session-header-write-mode/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/log-session-header-write-mode/</guid><description>pitfall, logging, filesystem, STATE</description><pubDate>Tue, 31 Mar 2026 00:00:00 GMT</pubDate></item><item><title>screenshot fifo lexicographic sort</title><link>https://alejandro-gutierrez.com/pitfalls/screenshot-fifo-lexicographic-sort/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/screenshot-fifo-lexicographic-sort/</guid><description>pitfall, screenshot, filesystem, RENDER</description><pubDate>Tue, 31 Mar 2026 00:00:00 GMT</pubDate></item><item><title>xterm webgl canvas tainted</title><link>https://alejandro-gutierrez.com/pitfalls/xterm-webgl-canvas-tainted/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/xterm-webgl-canvas-tainted/</guid><description>pitfall, xterm, canvas, RENDER</description><pubDate>Tue, 31 Mar 2026 00:00:00 GMT</pubDate></item><item><title>A 6-subagent Karpathy ratchet targeting interview conversion rate can identify and fix the bottlenec</title><link>https://alejandro-gutierrez.com/experiments/2026-03-29-interview-rate-optimization/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-03-29-interview-rate-optimization/</guid><description>All 6 subagents complete. LinkedIn scan revealed 0 interview signals from 105 submitted applications. All 12 recruiter messages were cold InMail, not responses. Interview rate from LinkedIn = 0%. Focus shifted to Gmail.</description><pubDate>Sun, 29 Mar 2026 00:00:00 GMT</pubDate></item><item><title>A click-and-verify loop that checks modal state after each click strategy will fix the modal-never-o</title><link>https://alejandro-gutierrez.com/experiments/2026-03-29-linkedin-run7-click-flow-rewrite/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-03-29-linkedin-run7-click-flow-rewrite/</guid><description>5/6 = 83% success. All 6 attempts opened modal on strategy 1 (first try). 1 failure: Save Application dialog blocked advancement.</description><pubDate>Sun, 29 Mar 2026 00:00:00 GMT</pubDate></item><item><title>Database-backed company intelligence with priority scoring improves Direct channel application quali</title><link>https://alejandro-gutierrez.com/experiments/2026-03-29-smart-company-selection/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-03-29-smart-company-selection/</guid><description>11 new table columns. Priority scoring operational. Direct channel submission rate stable at 77.9% (113/145). Cross-channel learning loop captures company data from every job discovered across all channels.</description><pubDate>Sun, 29 Mar 2026 00:00:00 GMT</pubDate></item><item><title>A monorepo architecture with 4 packages (shared, gork, mork, shell) connected by WebSocket protocol </title><link>https://alejandro-gutierrez.com/experiments/2026-03-29-v010-monorepo-build/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-03-29-v010-monorepo-build/</guid><description>Full terminal fidelity achieved via PTY-based execution. XState v5 state machines manage agent lifecycle. WebSocket binary framing protocol operational for inter-process communication.</description><pubDate>Sun, 29 Mar 2026 00:00:00 GMT</pubDate></item><item><title>+/- buttons with fixed 4-role spawn order will provide predictable warband management without race c</title><link>https://alejandro-gutierrez.com/experiments/2026-03-29-v020-spawn-kill-ui/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-03-29-v020-spawn-kill-ui/</guid><description>Fixed spawn order eliminates race conditions. Users can dynamically scale from 1-4 agents. Each role has distinct capabilities in the WS protocol.</description><pubDate>Sun, 29 Mar 2026 00:00:00 GMT</pubDate></item><item><title>vercel deploy not git sync</title><link>https://alejandro-gutierrez.com/pitfalls/vercel-deploy-not-git-sync/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/vercel-deploy-not-git-sync/</guid><description>vercel, deploy, ci-cd, jobs-apply, pitfall, DEPLOY</description><pubDate>Sun, 29 Mar 2026 00:00:00 GMT</pubDate></item><item><title>Normalizing vault paths in peon.json and fixing the _obsidian_dir() helper will eliminate orphaned n</title><link>https://alejandro-gutierrez.com/experiments/2026-03-28-vault-path-directory-mapping/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-03-28-vault-path-directory-mapping/</guid><description>Orphaned notes eliminated. All session-generated notes now land in correct vault directories. The _obsidian_dir() mapping is the critical bridge between Claude Code&apos;s project naming and Obsidian&apos;s directory structure.</description><pubDate>Sat, 28 Mar 2026 00:00:00 GMT</pubDate></item><item><title>A/B testing marketing page copy and layout will improve waitlist conversion rate</title><link>https://alejandro-gutierrez.com/experiments/2026-03-28-website-funnel-ab-testing/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-03-28-website-funnel-ab-testing/</guid><description>Experiment running. Only 3/10 pages instrumented (30%). Planned: 10 iterations covering CTA variants, flow tracking, demo conversion, pricing emphasis, multi-page experiments, ratchet winners/losers.</description><pubDate>Sat, 28 Mar 2026 00:00:00 GMT</pubDate></item><item><title>openrouter key in zshrc only</title><link>https://alejandro-gutierrez.com/pitfalls/openrouter-key-in-zshrc-only/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/openrouter-key-in-zshrc-only/</guid><description>api-keys, openrouter, zshrc, jobs-apply, pitfall, API</description><pubDate>Sat, 28 Mar 2026 00:00:00 GMT</pubDate></item><item><title>sessionend hook timeout 1500ms</title><link>https://alejandro-gutierrez.com/pitfalls/sessionend-hook-timeout-1500ms/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/sessionend-hook-timeout-1500ms/</guid><description>claude-code, hooks, timeout, peon-notify, pitfall, HOOKS</description><pubDate>Sat, 28 Mar 2026 00:00:00 GMT</pubDate></item><item><title>A three-layer scoring system (semantic embeddings + structured features + enhanced LLM) improves job</title><link>https://alejandro-gutierrez.com/experiments/2026-03-26-jscore-v2-scoring/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-03-26-jscore-v2-scoring/</guid><description>592 tests passing. Score audit table logs ALL scores including sub-70 rejections. 3,742 legacy scores backfilled from archived autosearch for calibration. Enables feedback loop training.</description><pubDate>Thu, 26 Mar 2026 00:00:00 GMT</pubDate></item><item><title>A multi-iteration anti-detection suite (gaussian timing, reading simulation, mouse movement, session</title><link>https://alejandro-gutierrez.com/experiments/2026-03-25-linkedin-anti-detection-suite/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-03-25-linkedin-anti-detection-suite/</guid><description>Account unrestricted since 2026-03-26. Run 7 (2026-03-29) achieved 83% with all anti-detection measures active. P0-P1 (iterations 1-6) complete. Safety rail working correctly.</description><pubDate>Wed, 25 Mar 2026 00:00:00 GMT</pubDate></item><item><title>Puppeteer-driven screenshot capture loops will catch visual regressions and verify dashboard renderi</title><link>https://alejandro-gutierrez.com/experiments/2026-03-25-screenshot-verification-automation/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-03-25-screenshot-verification-automation/</guid><description>Screenshot automation catches rendering bugs that unit tests miss. 2x retina resolution reveals sub-pixel issues. Rolling buffer enables before/after comparison without manual intervention.</description><pubDate>Wed, 25 Mar 2026 00:00:00 GMT</pubDate></item><item><title>Scanning ~/.claude/projects/*.jsonl and indexing historical sessions will backfill the vault with se</title><link>https://alejandro-gutierrez.com/experiments/2026-03-25-session-backfill-pipeline/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-03-25-session-backfill-pipeline/</guid><description>286 sessions indexed from JSONL backfill. Cursor-based processing enables incremental updates without reprocessing. Sessions are the fundamental unit for gap detection in the journal dimension.</description><pubDate>Wed, 25 Mar 2026 00:00:00 GMT</pubDate></item><item><title>LinkedIn anti-detection suite: account unrestricted, 83% session success</title><link>https://alejandro-gutierrez.com/breakthroughs/2026-03-25-jobs-apply-anti-detection-suite/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/breakthroughs/2026-03-25-jobs-apply-anti-detection-suite/</guid><description>Account restricted (Run 6, 2026-03-25). 47 fixed-delay timing points. No reading simulation. -&gt; Account unrestricted 2026-03-26. 83% session success rate (Run 7). 47 gaussian timing points. Safety rail preventing recurrence.</description><pubDate>Wed, 25 Mar 2026 00:00:00 GMT</pubDate></item><item><title>Multi-process coordinator: per-channel process isolation with auto-restart</title><link>https://alejandro-gutierrez.com/breakthroughs/2026-03-25-multi-process-coordinator/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/breakthroughs/2026-03-25-multi-process-coordinator/</guid><description>In-process ChannelRunLoop :  cross-platform failures cascade -&gt; Per-channel child processes with WorkerSupervisor (291 lines) + MultiProcessCoordinator (391 lines), exponential backoff restart, IPC event aggregation</description><pubDate>Wed, 25 Mar 2026 00:00:00 GMT</pubDate></item><item><title>linkedin behavioral detection</title><link>https://alejandro-gutierrez.com/pitfalls/linkedin-behavioral-detection/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/linkedin-behavioral-detection/</guid><description>linkedin, automation, detection, behavioral, jobs-apply, pitfall, DETECT</description><pubDate>Wed, 25 Mar 2026 00:00:00 GMT</pubDate></item><item><title>linkedin shadow dom locator fix</title><link>https://alejandro-gutierrez.com/pitfalls/linkedin-shadow-dom-locator-fix/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/linkedin-shadow-dom-locator-fix/</guid><description>pitfall, linkedin, shadow-dom, playwright, locator, jobs-apply, DETECT</description><pubDate>Wed, 25 Mar 2026 00:00:00 GMT</pubDate></item><item><title>Full marketing website built in 97 minutes (5 commits, 2,626 lines)</title><link>https://alejandro-gutierrez.com/breakthroughs/2026-03-24-marketing-website-overnight/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/breakthroughs/2026-03-24-marketing-website-overnight/</guid><description>No public-facing website :  dashboard only -&gt; Landing page, How It Works, Pricing, Waitlist API, dark theme, scroll animations :  deployed on Vercel</description><pubDate>Tue, 24 Mar 2026 00:00:00 GMT</pubDate></item><item><title>vercel monorepo build chain</title><link>https://alejandro-gutierrez.com/pitfalls/vercel-monorepo-build-chain/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/vercel-monorepo-build-chain/</guid><description>pitfall, deployment, vercel, career, DEPLOY</description><pubDate>Tue, 24 Mar 2026 00:00:00 GMT</pubDate></item><item><title>Connecting to the user&apos;s real Chrome via CDP will be more resistant to bot detection than Playwright</title><link>https://alejandro-gutierrez.com/experiments/2026-03-22-cdp-vs-playwright-browser-strategy/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-03-22-cdp-vs-playwright-browser-strategy/</guid><description>CDP mode disables ALL stealth scripts, relying entirely on real Chrome session. 22-38s click gaps were pure LLM inference, not humanization. Real Chrome with a user profile + cookies + extensions is inherently undetectable because it IS a real browser. The 275-line stealth module was unnecessary.</description><pubDate>Sun, 22 Mar 2026 00:00:00 GMT</pubDate></item><item><title>anti detection disabled in production</title><link>https://alejandro-gutierrez.com/pitfalls/anti-detection-disabled-in-production/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/anti-detection-disabled-in-production/</guid><description>pitfall, anti-detection, career, DETECT</description><pubDate>Sun, 22 Mar 2026 00:00:00 GMT</pubDate></item><item><title>bash set e arithmetic trap</title><link>https://alejandro-gutierrez.com/pitfalls/bash-set-e-arithmetic-trap/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/bash-set-e-arithmetic-trap/</guid><description>bash, set-e, arithmetic, peon-notify, pitfall, HOOKS</description><pubDate>Sun, 22 Mar 2026 00:00:00 GMT</pubDate></item><item><title>hook paths must be absolute</title><link>https://alejandro-gutierrez.com/pitfalls/hook-paths-must-be-absolute/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/hook-paths-must-be-absolute/</guid><description>claude-code, hooks, paths, installer, peon-notify, pitfall, HOOKS</description><pubDate>Sun, 22 Mar 2026 00:00:00 GMT</pubDate></item><item><title>unset claudecode nested cli</title><link>https://alejandro-gutierrez.com/pitfalls/unset-claudecode-nested-cli/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/unset-claudecode-nested-cli/</guid><description>claude-code, env-var, nested, peon-notify, pitfall, HOOKS</description><pubDate>Sun, 22 Mar 2026 00:00:00 GMT</pubDate></item><item><title>Automated lint+review on every file write will catch issues before they accumulate, despite the perf</title><link>https://alejandro-gutierrez.com/experiments/2026-03-20-codeguard-evolution/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-03-20-codeguard-evolution/</guid><description>Per-write processing was too expensive (confirmed hypothesis partially wrong). Accumulate-then-flush pattern solved it: ~1ms per event during session, single AI call at flush. Content-hash dedup prevents correction loops.</description><pubDate>Fri, 20 Mar 2026 00:00:00 GMT</pubDate></item><item><title>A 4-source ingestion pipeline (JSONL sessions, stats-cache, history.jsonl backfill, GitHub API) with</title><link>https://alejandro-gutierrez.com/experiments/2026-03-20-data-pipeline-maturity/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-03-20-data-pipeline-maturity/</guid><description>Pipeline operational with all 4 sources. Sub-project merging eliminates double-counting. Proportional distribution prevents activity spikes from skewing project-level metrics.</description><pubDate>Fri, 20 Mar 2026 00:00:00 GMT</pubDate></item><item><title>CodeGuard accumulate-then-flush: ~1ms per event, single AI call at boundary</title><link>https://alejandro-gutierrez.com/breakthroughs/2026-03-20-peon-notify-codeguard-accumulate-flush/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/breakthroughs/2026-03-20-peon-notify-codeguard-accumulate-flush/</guid><description>Per-write AI processing :  76% of sessions killed by timeout -&gt; Accumulate-then-flush: ~1ms per event during session, single AI call at flush. Content-hash dedup prevents loops.</description><pubDate>Fri, 20 Mar 2026 00:00:00 GMT</pubDate></item><item><title>A 3-round quantitative audit with one-step-ahead forecasting, multi-seed Monte Carlo, and Brier scor</title><link>https://alejandro-gutierrez.com/experiments/2026-03-18-v16-quant-audit-3-rounds/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-03-18-v16-quant-audit-3-rounds/</guid><description>R-squared=0.9752, MAPE=1.49%, OOS R-squared=0.9755. One-step-ahead: MAE=$0.833, RMSE=$1.198, direction accuracy=93.8%. Brier edge vs Polymarket: +11.21pp (82% win probability). Sell model: 100% trigger accuracy, 0 false sells, 24.6% CVaR99 reduction. 8 active parameters with 4.2:1 data-to-parameter ratio, 33 frozen.</description><pubDate>Wed, 18 Mar 2026 00:00:00 GMT</pubDate></item><item><title>An 11-trigger sell model with conviction hold override plus refined de-escalation will achieve optim</title><link>https://alejandro-gutierrez.com/experiments/2026-03-18-v16-sell-model-deesc-tuning/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-03-18-v16-sell-model-deesc-tuning/</guid><description>Lowest one-step MAE: $0.833 (13% better than v14b). Direction accuracy 93.8% (15/16). Sell model: 100% trigger accuracy, 0 missed sells, 0 false sells. CVaR99 reduction 24.6%. Sell Brier 0.0024 (near-perfect). Brier vs Polymarket +11.21pp (82% win probability).</description><pubDate>Wed, 18 Mar 2026 00:00:00 GMT</pubDate></item><item><title>An 8-layer geopolitical consensus pipeline with tier-based parameter classification enables reliable</title><link>https://alejandro-gutierrez.com/experiments/2026-03-18-v17-realtime-consensus-pipeline/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-03-18-v17-realtime-consensus-pipeline/</guid><description>v17.2 current. Cycle 3 example: R² 0.9610→0.9769 (+0.0159), MAPE 1.85%→1.26% (-0.59pp). 12 parameters accepted, 3 rejected (backward sandbox fail, low confidence). 8 active params stable. Cumulative from v13: R² +1.36pp, MAPE -0.63pp, MAE 49% reduction ($1.633→$0.833), Direction +7.1pp, OOS R² +6.24pp, Brier +9.93pp vs Polymarket.</description><pubDate>Wed, 18 Mar 2026 00:00:00 GMT</pubDate></item><item><title>Oil v16 quant audit: +11.21pp Brier edge vs Polymarket, 82% win probability</title><link>https://alejandro-gutierrez.com/breakthroughs/2026-03-18-oil-v16-quant-audit-brier/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/breakthroughs/2026-03-18-oil-v16-quant-audit-brier/</guid><description>No external probabilistic validation :  model accuracy only measured against in-sample R² -&gt; +11.21pp Brier edge vs Polymarket, 82% win probability, MAE $0.833, direction 93.8%</description><pubDate>Wed, 18 Mar 2026 00:00:00 GMT</pubDate></item><item><title>Sell model: 100% trigger accuracy, zero false sells, CVaR99 -24.6%</title><link>https://alejandro-gutierrez.com/breakthroughs/2026-03-18-oil-v16-sell-model/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/breakthroughs/2026-03-18-oil-v16-sell-model/</guid><description>No systematic sell discipline :  manual exits, no trigger framework, ad-hoc position management -&gt; 11-trigger sell model, 100% accuracy, 0 missed sells, 0 false sells, Sell Brier 0.0024, CVaR99 -24.6%</description><pubDate>Wed, 18 Mar 2026 00:00:00 GMT</pubDate></item><item><title>Realtime consensus pipeline: autonomous hourly model updates, cumulative MAE -49%</title><link>https://alejandro-gutierrez.com/breakthroughs/2026-03-18-oil-v17-realtime-consensus/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/breakthroughs/2026-03-18-oil-v17-realtime-consensus/</guid><description>Manual parameter updates, 2-4 hours per cycle, 1-2x daily maximum -&gt; Hourly autonomous updates. Cumulative v13-v17: MAE -49%, OOS R² +6.24pp, Brier +9.93pp</description><pubDate>Wed, 18 Mar 2026 00:00:00 GMT</pubDate></item><item><title>Autoregressive error correction and spike reversion mechanics will eliminate the persistent Day 16 p</title><link>https://alejandro-gutierrez.com/experiments/2026-03-17-v14-ar-error-correction/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-03-17-v14-ar-error-correction/</guid><description>R² 0.9684 (+0.68pp). MAPE 1.57% (-0.32pp). One-step MAE $1.09 (-$0.54, 33% improvement). Direction accuracy 86.7%→93.3% (+6.6pp). Day 16 error -2.99→+0.05 (essentially eliminated, +$3.04). Brier +4.14pp. Active params reduced to 8.</description><pubDate>Tue, 17 Mar 2026 00:00:00 GMT</pubDate></item><item><title>Sigmoid probability blending (vs binary threshold) combined with expanded historical validation (10K</title><link>https://alejandro-gutierrez.com/experiments/2026-03-17-v14b-sigmoid-calibration/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-03-17-v14b-sigmoid-calibration/</guid><description>MAE $0.951 (42% improvement from v13&apos;s $1.633). Autocorrelation 0.1651→-0.001 (eliminated). OOS R² 0.9699. P($150) elevated +0.9pp, P($200) 0.002→0.024 (12x expansion). Sigmoid calibration enables smooth model-vs-Polymarket blending.</description><pubDate>Tue, 17 Mar 2026 00:00:00 GMT</pubDate></item><item><title>AR error correction: one-step MAE -33%, direction accuracy +6.6pp, Day 16 bias eliminated</title><link>https://alejandro-gutierrez.com/breakthroughs/2026-03-17-oil-v14-ar-error-correction/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/breakthroughs/2026-03-17-oil-v14-ar-error-correction/</guid><description>One-step MAE $1.63, direction accuracy 86.7%, Day 16 error -$2.99, 16 active parameters -&gt; One-step MAE $1.09 (-33%), direction accuracy 93.3% (+6.6pp), Day 16 error +$0.05, 8 active parameters</description><pubDate>Tue, 17 Mar 2026 00:00:00 GMT</pubDate></item><item><title>Sigmoid calibration: MAE -42%, autocorrelation eliminated</title><link>https://alejandro-gutierrez.com/breakthroughs/2026-03-17-oil-v14b-sigmoid-calibration/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/breakthroughs/2026-03-17-oil-v14b-sigmoid-calibration/</guid><description>MAE $1.633, autocorrelation 0.1651 -&gt; MAE $0.951 (-42%), autocorrelation -0.001 (eliminated)</description><pubDate>Tue, 17 Mar 2026 00:00:00 GMT</pubDate></item><item><title>Tail risk is vastly underestimated :  adding historical analogues and de-escalation mechanics will i</title><link>https://alejandro-gutierrez.com/experiments/2026-03-16-v13-tail-risk-recalibration/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-03-16-v13-tail-risk-recalibration/</guid><description>R² 0.9498→0.9616 (+1.18pp). MAPE 1.97%→1.89%. OOS R² 0.8633→0.9131 (+4.98pp). P($120+) 15.4%→36.4%. Historical pass rate 0/5→5/8. Brier vs Polymarket +1.28pp.</description><pubDate>Mon, 16 Mar 2026 00:00:00 GMT</pubDate></item><item><title>Tail risk recalibration: OOS R² +4.98pp, tail probability &gt;100% improvement</title><link>https://alejandro-gutierrez.com/breakthroughs/2026-03-16-oil-v13-tail-risk-recalibration/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/breakthroughs/2026-03-16-oil-v13-tail-risk-recalibration/</guid><description>OOS R² 0.8633, P($120+) 15.4%, historical analogue pass 0/5 -&gt; OOS R² 0.9131, P($120+) 36.4%, historical analogue pass 5/8</description><pubDate>Mon, 16 Mar 2026 00:00:00 GMT</pubDate></item><item><title>Systematic fix of individual failure points will drive LinkedIn Easy Apply submission rate above 80%</title><link>https://alejandro-gutierrez.com/experiments/2026-03-15-linkedin-submission-rate-ratchet/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-03-15-linkedin-submission-rate-ratchet/</guid><description>7 runs, 40% to 83% final. 26 individual failure fixes (F1-F39). Account restriction in Run 6 was the critical learning. Run 7 modal detection loop (3s initial + 4s DOM check, two-attempt strategy) achieved Strategy-1: 100% success rate.</description><pubDate>Sun, 15 Mar 2026 00:00:00 GMT</pubDate></item><item><title>Three independent audit personas (CPA, CFO, Data Engineer) will find different categories of control</title><link>https://alejandro-gutierrez.com/experiments/2026-03-15-multi-persona-audit/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-03-15-multi-persona-audit/</guid><description>CPA found 5+ critical control failures (audit trail immutability, no approval workflows, no pre-submission validation, no idempotency, batch control bypass). CFO found governance gaps. DE found data pipeline issues. Minimal overlap between personas validates the multi-perspective approach.</description><pubDate>Sun, 15 Mar 2026 00:00:00 GMT</pubDate></item><item><title>Canvas 2D rendering will provide better performance and simpler architecture than Three.js for the d</title><link>https://alejandro-gutierrez.com/experiments/2026-03-15-threejs-to-canvas2d-migration/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-03-15-threejs-to-canvas2d-migration/</guid><description>Canvas 2D eliminated WebGL context issues, simplified the rendering pipeline, and enabled L-system botanical encoding that maps naturally to developer metrics. Quadtree hit testing replaced raycasting.</description><pubDate>Sun, 15 Mar 2026 00:00:00 GMT</pubDate></item><item><title>Three.js to Canvas 2D migration: eliminated WebGL issues, enabled L-system encoding</title><link>https://alejandro-gutierrez.com/breakthroughs/2026-03-15-bloomnet-canvas2d-migration/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/breakthroughs/2026-03-15-bloomnet-canvas2d-migration/</guid><description>Three.js 3D scene with WebGL context tainted errors, raycasting for hit testing -&gt; Canvas 2D with L-system botanical encoding, quadtree spatial index, zero WebGL dependency</description><pubDate>Sun, 15 Mar 2026 00:00:00 GMT</pubDate></item><item><title>LinkedIn submission rate ratchet: 40% to 83% over 7 runs</title><link>https://alejandro-gutierrez.com/breakthroughs/2026-03-15-jobs-apply-linkedin-submission-ratchet/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/breakthroughs/2026-03-15-jobs-apply-linkedin-submission-ratchet/</guid><description>40% submission success rate, Run 1 -&gt; 83% submission success rate, Run 7. 26 individual failure fixes (F1-F39). Modal detection: 100%.</description><pubDate>Sun, 15 Mar 2026 00:00:00 GMT</pubDate></item><item><title>Multi-persona audit: 3 independent personas find disjoint control failures</title><link>https://alejandro-gutierrez.com/breakthroughs/2026-03-15-quick-fin-multi-persona-audit/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/breakthroughs/2026-03-15-quick-fin-multi-persona-audit/</guid><description>Single-perspective review of 244-tool MCP server -&gt; CPA found 5+ critical control failures, CFO found governance gaps, DE found pipeline issues. Minimal overlap validates multi-perspective approach.</description><pubDate>Sun, 15 Mar 2026 00:00:00 GMT</pubDate></item><item><title>A fixed spawn order with 4 roles (orchestrator, observer, worker, specialist) will provide predictab</title><link>https://alejandro-gutierrez.com/experiments/2026-03-10-four-role-spawn-architecture/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-03-10-four-role-spawn-architecture/</guid><description>Fixed spawn order eliminates race conditions in process initialization. WS protocol enables real-time status updates. UI provides visual feedback of process state.</description><pubDate>Tue, 10 Mar 2026 00:00:00 GMT</pubDate></item><item><title>Direct channel: 98% submission success rate (48/49 applications)</title><link>https://alejandro-gutierrez.com/breakthroughs/2026-03-10-direct-channel-98-percent/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/breakthroughs/2026-03-10-direct-channel-98-percent/</guid><description>Unknown success rate, no systematic measurement -&gt; Direct 98% (48/49), Greenhouse 100% (10/10), combined 69% (58/84, LinkedIn 0% dragging average)</description><pubDate>Tue, 10 Mar 2026 00:00:00 GMT</pubDate></item><item><title>chrome crash bubble blocks automation</title><link>https://alejandro-gutierrez.com/pitfalls/chrome-crash-bubble-blocks-automation/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/chrome-crash-bubble-blocks-automation/</guid><description>pitfall, browser, chrome, career, DETECT</description><pubDate>Tue, 10 Mar 2026 00:00:00 GMT</pubDate></item><item><title>linkedin stale job inventory</title><link>https://alejandro-gutierrez.com/pitfalls/linkedin-stale-job-inventory/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/linkedin-stale-job-inventory/</guid><description>pitfall, linkedin, career, DETECT</description><pubDate>Tue, 10 Mar 2026 00:00:00 GMT</pubDate></item><item><title>Deploying 4 parallel Claude Code agents in isolated git worktrees can divide adapter development wor</title><link>https://alejandro-gutierrez.com/experiments/2026-03-09-four-opus-sub-agent-orchestration/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-03-09-four-opus-sub-agent-orchestration/</guid><description>679 sessions (522 main + 157 worktree) in 2 days. Agents successfully parallelized adapter work. Merged into baseline commit e4f43c5. Pattern later formalized in Dakka orchestrator.</description><pubDate>Mon, 09 Mar 2026 00:00:00 GMT</pubDate></item><item><title>Infinite run coordinator: persistent autonomous job application engine</title><link>https://alejandro-gutierrez.com/breakthroughs/2026-03-09-infinite-run-coordinator/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/breakthroughs/2026-03-09-infinite-run-coordinator/</guid><description>Single-run tool requiring manual restart for each batch -&gt; Persistent engine: per-channel state machines, quiet hours, stagger delay, daily limits, auto-pause on CAPTCHA, exponential backoff</description><pubDate>Mon, 09 Mar 2026 00:00:00 GMT</pubDate></item><item><title>A bash loop invoking Claude Code per-spec could autonomously build a multi-component system</title><link>https://alejandro-gutierrez.com/experiments/2026-03-01-ralph-loop-autonomous-build/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-03-01-ralph-loop-autonomous-build/</guid><description>Autonomous spec-driven build works but requires single-spec scoping, error tolerance (no set -e), and escape hatches for agent failures. Prompt anti-dependency bias discovered: agents inject unnecessary dependencies when prompts embed content inline.</description><pubDate>Sun, 01 Mar 2026 00:00:00 GMT</pubDate></item><item><title>Ralph loop: autonomous spec-driven multi-component build via Claude Code</title><link>https://alejandro-gutierrez.com/breakthroughs/2026-03-01-kiro-ralph-loop-autonomous-build/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/breakthroughs/2026-03-01-kiro-ralph-loop-autonomous-build/</guid><description>Manual component-by-component development requiring human handoff between each spec -&gt; Bash loop invokes Claude Code per spec autonomously. Full multi-component build without human intervention.</description><pubDate>Sun, 01 Mar 2026 00:00:00 GMT</pubDate></item><item><title>A provider-transparent rate limiter keyed by API key + provider can prevent cost blowouts on free-ti</title><link>https://alejandro-gutierrez.com/experiments/2026-02-27-sliding-window-rate-limiter/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-02-27-sliding-window-rate-limiter/</guid><description>Zero consumer changes needed. Rate limiting invisible inside provider layer. Prevented cost blowouts during early development on Tier 1 plans. Pattern persisted into production.</description><pubDate>Fri, 27 Feb 2026 00:00:00 GMT</pubDate></item><item><title>Rewriting chart family implementations with domain-specific best practices will produce publication-</title><link>https://alejandro-gutierrez.com/experiments/2026-02-26-r-chart-family-overhaul/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-02-26-r-chart-family-overhaul/</guid><description>Raincloud plots (stat_halfeye + geom_boxplot + stat_dots), force-directed networks (stress layout, geom_edge_link0), Kaplan-Meier survival curves (dynamic break.time.by), multiline time series (linetype dual encoding). All passed 12-check per-family quality validation.</description><pubDate>Thu, 26 Feb 2026 00:00:00 GMT</pubDate></item><item><title>Gemini Flash vision can analyze ATS page screenshots to extract form structure and job details witho</title><link>https://alejandro-gutierrez.com/experiments/2026-02-26-vision-screenshot-ats-analysis/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-02-26-vision-screenshot-ats-analysis/</guid><description>Vision approach worked for page understanding but was eventually replaced by DOM-based extraction for form filling. Vision remained useful for fallback analysis of non-standard ATS layouts. The OpenRouter provider with vision support became the standard AI integration pattern.</description><pubDate>Thu, 26 Feb 2026 00:00:00 GMT</pubDate></item><item><title>AutoHunt: 15K-line job automation monorepo scaffolded in one day</title><link>https://alejandro-gutierrez.com/breakthroughs/2026-02-26-autohunt-initial-scaffolding/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/breakthroughs/2026-02-26-autohunt-initial-scaffolding/</guid><description>No automation :  manual job applications only -&gt; Full monorepo: 9 packages, 107 files, 10 platform adapters, Socket.io dashboard, AI-powered matching</description><pubDate>Thu, 26 Feb 2026 00:00:00 GMT</pubDate></item><item><title>PeonNotify: Warcraft-themed sound notification system for Claude Code</title><link>https://alejandro-gutierrez.com/breakthroughs/2026-02-26-peon-notify-creation/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/breakthroughs/2026-02-26-peon-notify-creation/</guid><description>Silent Claude Code sessions :  no audio feedback on completions or errors -&gt; Contextual Orc Peon voice lines on session events: work_complete, jobs_done, me_busy, hmmm</description><pubDate>Thu, 26 Feb 2026 00:00:00 GMT</pubDate></item><item><title>ollama local llm abandoned</title><link>https://alejandro-gutierrez.com/pitfalls/ollama-local-llm-abandoned/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/ollama-local-llm-abandoned/</guid><description>pitfall, ai, ollama, career, API</description><pubDate>Thu, 26 Feb 2026 00:00:00 GMT</pubDate></item><item><title>playwright stealth replaced by cdp</title><link>https://alejandro-gutierrez.com/pitfalls/playwright-stealth-replaced-by-cdp/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/playwright-stealth-replaced-by-cdp/</guid><description>pitfall, browser, anti-detection, career, DETECT</description><pubDate>Thu, 26 Feb 2026 00:00:00 GMT</pubDate></item><item><title>Redcorsair pivot: red-team attack server to R visualization MCP</title><link>https://alejandro-gutierrez.com/breakthroughs/2026-02-25-redcorsair-pivot-r-viz-mcp/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/breakthroughs/2026-02-25-redcorsair-pivot-r-viz-mcp/</guid><description>520 files, 122K lines :  red-team attack automation server -&gt; Lightweight MCP server: 4 brand templates, 36 viz scripts, 108-check quality validator</description><pubDate>Wed, 25 Feb 2026 00:00:00 GMT</pubDate></item><item><title>mcp sdk version pinning railway</title><link>https://alejandro-gutierrez.com/pitfalls/mcp-sdk-version-pinning-railway/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/mcp-sdk-version-pinning-railway/</guid><description>mcp, railway, oauth, deployment, version-pinning, redcorsair, reconstructed-from-git, pitfall, DEPLOY</description><pubDate>Wed, 25 Feb 2026 00:00:00 GMT</pubDate></item><item><title>Deterministic campaign design with seeded RNG will enable snapshot testing of generated game content</title><link>https://alejandro-gutierrez.com/experiments/2026-02-15-deterministic-campaign-system/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-02-15-deterministic-campaign-system/</guid><description>Snapshot testing became trivial: generate campaign with seed X, diff against expected output. 73 encoding variants all produce deterministic output given the same seed.</description><pubDate>Sun, 15 Feb 2026 00:00:00 GMT</pubDate></item><item><title>Multi-turn cascade attacks are more effective than single-turn jailbreaks for AI safety red-teaming</title><link>https://alejandro-gutierrez.com/experiments/2026-02-10-cascade-attack-multi-turn-jailbreak/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/experiments/2026-02-10-cascade-attack-multi-turn-jailbreak/</guid><description>Multi-turn cascades bypass safety filters that block equivalent single-turn requests. The progressive context building creates a &apos;boiling frog&apos; effect on content filters.</description><pubDate>Tue, 10 Feb 2026 00:00:00 GMT</pubDate></item><item><title>Cascade attack: multi-turn &gt; single-turn for AI safety red-teaming</title><link>https://alejandro-gutierrez.com/breakthroughs/2026-02-10-redcorsair-cascade-attack/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/breakthroughs/2026-02-10-redcorsair-cascade-attack/</guid><description>Single-turn jailbreak attempts blocked by safety filters -&gt; Multi-turn cascades bypass filters that block equivalent single-turn requests</description><pubDate>Tue, 10 Feb 2026 00:00:00 GMT</pubDate></item><item><title>codex merge conflict ordering</title><link>https://alejandro-gutierrez.com/pitfalls/codex-merge-conflict-ordering/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/codex-merge-conflict-ordering/</guid><description>codex, git, merge-conflicts, scaffolding, reconstructed-from-git, pitfall, DEPLOY</description><pubDate>Mon, 08 Sep 2025 00:00:00 GMT</pubDate></item><item><title>pirate ship provider quarantine circuit breaker</title><link>https://alejandro-gutierrez.com/pitfalls/pirate-ship-provider-quarantine-circuit-breaker/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/pirate-ship-provider-quarantine-circuit-breaker/</guid><description>pirate-ship, rate-limiting, circuit-breaker, api, reconstructed-from-git, pitfall, API</description><pubDate>Wed, 27 Aug 2025 00:00:00 GMT</pubDate></item><item><title>pirate ship pyc in git</title><link>https://alejandro-gutierrez.com/pitfalls/pirate-ship-pyc-in-git/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/pirate-ship-pyc-in-git/</guid><description>pirate-ship, git, python, hygiene, reconstructed-from-git, pitfall, DEPLOY</description><pubDate>Sun, 24 Aug 2025 00:00:00 GMT</pubDate></item><item><title>cloudflare pages deployment pain</title><link>https://alejandro-gutierrez.com/pitfalls/cloudflare-pages-deployment-pain/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/cloudflare-pages-deployment-pain/</guid><description>cloudflare, deployment, ci-cd, github-actions, redcorsair, reconstructed-from-git, pitfall, DEPLOY</description><pubDate>Tue, 19 Aug 2025 00:00:00 GMT</pubDate></item><item><title>redcorsair railway deployment saga</title><link>https://alejandro-gutierrez.com/pitfalls/redcorsair-railway-deployment-saga/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/redcorsair-railway-deployment-saga/</guid><description>railway, deployment, docker, nixpacks, python, reconstructed-from-git, pitfall, DEPLOY</description><pubDate>Tue, 22 Jul 2025 00:00:00 GMT</pubDate></item><item><title>redcorsair method signature drift</title><link>https://alejandro-gutierrez.com/pitfalls/redcorsair-method-signature-drift/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/redcorsair-method-signature-drift/</guid><description>python, refactoring, api-drift, mcp, reconstructed-from-git, pitfall, DEPLOY</description><pubDate>Tue, 08 Jul 2025 00:00:00 GMT</pubDate></item><item><title>astro carousel js ssr mismatch</title><link>https://alejandro-gutierrez.com/pitfalls/astro-carousel-js-ssr-mismatch/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/astro-carousel-js-ssr-mismatch/</guid><description>astro, javascript, ssr, frontend, reconstructed-from-git, pitfall, RENDER</description><pubDate>Mon, 30 Jun 2025 00:00:00 GMT</pubDate></item><item><title>railway nixpacks python dependency hell</title><link>https://alejandro-gutierrez.com/pitfalls/railway-nixpacks-python-dependency-hell/</link><guid isPermaLink="true">https://alejandro-gutierrez.com/pitfalls/railway-nixpacks-python-dependency-hell/</guid><description>railway, nixpacks, python, pip, deployment, reconstructed-from-git, pitfall, DEPLOY</description><pubDate>Mon, 30 Jun 2025 00:00:00 GMT</pubDate></item></channel></rss>