A new teammate joins. You want them up to speed fast, so you say the breezy thing: "Just use the agent freely, it's great."
A week later, it usually lands one of two ways. Either they trusted it too soon — delegated everything, merged everything, and now you're cleaning a pile of looks-fine-but-wrong in the spots only a practiced hand would suspect. Or the opposite — they fear the agent, won't delegate anything meaningful, type every line by hand as if it never existed. Neither is their fault. It's that your "use it freely" handed them nothing to use it well with.
01What you're good at lives in the craft, not in words
This is easy to underrate. You're good with an agent not because you know a secret tip you can say in one sentence. You're good because of a pile of judgments that hardened into reflex: a glance at a task tells you whether it's worth delegating or faster done yourself, you sense when to set a gate, you smell a suspicious "done."
That pile of judgment is tacit knowledge — it lives in the hands, not on the lips. Ask "how do you know when to trust the agent," and you'll mumble "it... depends, you just learn it by doing." That's honest, but useless to a newcomer: it drops them at exactly where you once stood — having to fall enough times to extract it, except each fall this time is a mess in the shared thing to clean.
The turn is here: a team doesn't get good just because one person is good. That goodness, while it's stuck in one person's hands, is one person's asset. Onboarding isn't passing the newcomer your conclusions — it's building them a path to re-walk the distance you walked, faster and with fewer falls.
02A walkable path, instead of being dropped in empty-handed
What replaces "use it freely" isn't a lecture. It's a three-beat path, each beat widening trust a little — exactly how you learned, just made explicit:
Beat 2 — Small task with a net: give them a real but reversible task, with the team's shared rulebook as the net. They drive; you review their first merge — not to nitpick, but to point out exactly what to recalibrate.
Beat 3 — Widen gradually: once they can calibrate trust on small work, open to bigger. Trust rises with what they've proven they can do, not with the day they joined.
Notice this path doesn't teach them to "trust the agent" or "don't trust the agent" — it teaches them to <i>calibrate</i> trust per task, across a stretch with a net underneath. What you learned by falling, they learn by a guided road.
03What to pull out of the hands into words
For that path to run, you have to pull a few things out of the craft into something sayable. Not all of it — just the ones a newcomer most slips on if left to fumble alone:
Say the thing you glance-and-know: what suits the agent, what's faster done yourself. A few real examples from the team beat any abstract principle.
Point out the spots in the team's system that must stop for confirmation — the un-undoable, the shared things. The newcomer has no danger map in their head; lend them yours.
Say it plainly: on this team, how far can a newcomer self-merge before a second pair of eyes is needed. An explicit line beats far the alternative of them guessing and guessing wrong.
These three are exactly the tacit knowledge you use without noticing — now said aloud. Saying it once to a newcomer is far cheaper than letting them extract it through a few falls in the shared thing.
04Craft that doesn't transfer dies with the one who holds it
One person brilliant with an agent who can't pass it on is a team's hidden weakness: that brilliance vanishes on exactly the day they take leave, or a fourth person joins and no one had time to guide them. The team thinks it's strong, but that strength hangs on one person.
Hold one line: onboarding into the agent workflow is transferring craft, not granting access. Giving a newcomer permission to use the agent takes a minute; bringing them into the workflow properly takes a path with a net. This is also the team version of probing the agent on a small slice before trusting it on the big task — except this time what's being calibrated is a person, and the guide is you. Your skill only truly becomes the team's asset on the day it no longer needs you to exist.