Make a deal with Manuel Rivero
🔒 Paid proposals held safely in escrow — released only when the work's approved.
Known for
5 views
In which we summarize the idea that not all surviving mutants signal testing gaps:
🚫 Ignore survivors in dead code or intentionally untested paths (legacy seams)
🧹 Some survivors signal refactoring opportunities
✅ Some survivors uncover real testing gaps
https://codesai.com/posts/2026/02/relevant_mutants_in_a_flash
4 views
🤖 In which we used AI to introduce a decorator and simplify the tests🧩
🗣️ Design-pattern vocabulary may help guide AI transformations
✅ But tests, linters and reviews are still essential
Refactoring with AI: Lessons in Introducing a Decorator Pattern https://codesai.com/posts/2026/03/ai-refactor_to_decorator
3 views
🧪In which we showed that for the London-school TDD, the unit is behavior, not the class
🚫Mocking every collaborator creates brittle tests coupled to implementation details
✅GOOS recommends mocking only peers, not values or internals
📘 Read it: https://codesai.com/posts/2025/03/mockist-tdd-unit-not-the-class
3 views
🤖 In which we show that blindly killing all mutants with AI can make your tests worse💸:
- brittle assertions
- duplicated tests
- mocked types we don't own
💡Some surviving mutants should be killed with refactoring, not testing
🧠HIL still required!
https://codesai.com/posts/2026/04/agents-blindly-killing-mutants
📊 Post engagement
🔥 Top post: In which we summarize the idea that not all surviving mutants si · 5 likes + reposts
📊 Activity & format
Recent posts
View on Mastodon ↗
🔥 Top post
In which we summarize the idea that not all surviving mutants signal testing gaps:
🚫 Ignore survivors in dead code or intentionally untested paths (legacy seams)
🧹 Some survivors signal refactoring opportunities
✅ Some survivors uncover real testing gaps
https://codesai.com/post…
Books I read (January - June 2026)
https://garajeando.blogspot.com/2026/07/books-i-read-january-june-2026.html
Muy interesante y necesaria:
Que no quiero más IA, señora, suélteme el brazo de Jorge Castaño
https://www.youtube.com/watch?v=TbEemCIGPnI
Visual summary of our post Roots of the Mock Trauma https://codesai.com/posts/2026/04/roots_of_the_mock_trauma_in_a_flash
In which we show mock trauma 🤕 is a symptom usually caused by:
🏗️ Poor design: procedural code, too many responsibilities, fragile interfaces
🤔 Misuse: mocking value objects, internals, third-party types, or treating classes as units
❌ Don…
Books I read (January - May 2026)
https://garajeando.blogspot.com/2026/06/books-i-read-january-may-2026.html
🧪In which we showed that for the London-school TDD, the unit is behavior, not the class
🚫Mocking every collaborator creates brittle tests coupled to implementation details
✅GOOS recommends mocking only peers, not values or internals
📘 Read…
🤖 In which we show that blindly killing all mutants with AI can make your tests worse💸:
- brittle assertions
- duplicated tests
- mocked types we don't own
💡Some surviving mutants should be killed with refactoring, not testing
🧠HIL still r…
Has AI Conquered Coding? (It’s Not So Simple…)
https://www.youtube.com/watch?v=SOKfVVOq-Ck
🤖 In which we introduced a State Pattern with AI to remove code smells 🧩
🗣️ Explicit transition table & design-pattern vocabulary helped guide the agent
✅ AI accelerated structural transformation, still deterministic IDE refactorings faste…
🤖 In which we used AI to introduce a decorator and simplify the tests🧩
🗣️ Design-pattern vocabulary may help guide AI transformations
✅ But tests, linters and reviews are still essential
Refactoring with AI: Lessons in Introducing a Decora…
Apúntate al curso abierto de TDD que daré junto con @fran_reyes ! 🚀
8, 9, 10, 15 y 16 junio de 10 a 14 (hora peninsular) https://codesai.com/curso-de-tdd/
Descuento 50% para particulares de grupos poco representados
Bonificable con FUNDAE…
🐘 Community & instance
💡 Facts
🕵️ Fake follower check
Estimated- Est. 97% real, active audience · Low fake-follower risk.
- Strong engagement (~3.6% of followers engage each post) — an active, real audience.
- Established account (3+ years old).
Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.
About
📸 Gallery
🔀 Audience overlap
EstimatedEstimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.
More like this
Find more →✉ Message Manuel Rivero
Reaching out to influencers is a Pro feature. Upgrade to message any influencer directly — perfect for brands and agencies booking sponsorships.
- ✓ Message any influencer from their listing
- ✓ The influencer gets notified by email
- ✓ Manage every conversation in one inbox
Already Pro? Log in.
🎤 Event / appearance with Manuel Rivero
Booking an event / appearance is a Pro feature. Upgrade to book Manuel Rivero for an in-person or virtual appearance — payment held safely in escrow until the event is done.
- ✓ Book them for events, livestreams, panels & more
- ✓ Manuel Rivero gets notified by email
- ✓ Fee held in escrow, released after the appearance
Already Pro? Log in.
You're out of free requests this month
Free accounts get 5 per month. Go Pro for unlimited sponsor pitches, collab requests & sponsorship deals — plus featured placement, the Verified badge, free withdrawals and more.
Upgrade to Pro — $9.95/mo →Your free limit resets on the 1st of next month.