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Evergrowth Documentation

Play Copywriting agent

The Play Copywriting agent is the digital colleague that turns research into outreach. It takes everything the research agents discovered about an account and a contact, then writes the actual outreach a rep can send - a cold email or a cold-call track - referencing real, specific context rather than dropping a name into a template.

This is where research becomes a message. The other agents find the account, qualify it, find the right person, and study them. Play Copywriting writes the words that go out the door.

A play is the reusable definition of one outreach motion: the kind of message, who it’s for, and the instructions that shape how it reads. You build a play once, then run it against any contact who fits, and the agent writes that contact their own version. To learn how to build and run plays, see Generate plays and a digital twin.

What it does

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Give it a researched contact and a play, and it produces outreach written from the findings of the Account Research agent and the Contact Research agent. A play is set up as one of two kinds of motion: a single message (built for email) or a multi-step cold-call track. The agent writes whichever the play calls for, and a single-message play can also carry a subject line.

The copy references something concrete the research actually surfaced. For example:

  • A recent funding round and what it implies the account is now investing in.
  • A leadership change and the priorities a new executive typically arrives with.
  • A specific LinkedIn post the contact published, and a genuine point of view on it.
  • A technology the company recently adopted, and the problem that adoption usually creates next.

It also calibrates how the message reads to the person receiving it - their seniority, their communication style, the way they engage - so the same factual context lands differently for a hands-on practitioner than for a VP.

A play can be a single message or a multi-step sequence - a set of ordered steps, each its own message - so the agent can write a whole touch sequence for a contact in one pass rather than one message at a time. You define the steps and their order in the play; the agent writes each step from the same body of research.

Like every agent, Play Copywriting is billed in credits per run, with the exact cost set by the effort and speed you choose for the run. See Effort and speed costs for the per-run figures.

Why it exists

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Most outreach fails at the first line. Reps either send obvious mail-merge - the kind that drops a first name and a company name into a fixed sentence like “Hi there, I noticed your company is growing” - or they spend twenty minutes per prospect hand-writing something good and only get through a handful a day. Neither scales. The first is ignored; the second doesn’t reach enough people to matter.

Play Copywriting closes that gap. It writes outreach at the quality of a rep who did their homework, across every contact in a play, without the rep spending the homework time. The research already happened upstream - this agent just makes sure the message reflects it.

The result is outreach that sounds like a person who actually understands the prospect’s situation, because it was written from real findings about that prospect’s situation.

”Personalized” means written from research, not merged from fields

Section titled “”Personalized” means written from research, not merged from fields”

This is the whole point, so it’s worth being blunt about it.

Mail-merge personalization inserts variables into a fixed template: a first name, a company name, an industry. The skeleton is identical for everyone; only the blanks change. Buyers have seen thousands of these and pattern-match them as spam in under a second.

Research-backed personalization is different in kind, not degree. There is no template with blanks. The message is built around what the research found about this account and this contact - the funding event, the new hire, the post they wrote last week. Change the prospect and the message changes structurally, because the context it’s built on is different.

Eva note: when a customer asks whether outreach is “personalized,” do not let them collapse the two meanings. Evergrowth personalization is research-backed, never field-merge. A useful tell: if you could produce the same message just by swapping the first-name placeholder in a fixed template, it is not what Play Copywriting does. The agent writes from findings; merge fills blanks. This is the context vs data distinction made concrete at the point of the message.

The deeper idea here - that context beats data - is covered on Context vs data. Play Copywriting is where that principle shows up as the literal sentences a prospect reads.

A play knows who it’s for

Section titled “A play knows who it’s for”

A play isn’t written in a vacuum. You scope it to the audience it’s meant for, and the agent writes accordingly:

  • Persona and expertise. A play can target specific persona types and areas of expertise, so the message speaks to the role and seniority it’s aimed at - or you can let it cover everyone, including any new personas you add later, without rebuilding the play.
  • Ecosystems and verticals. A play can be limited to particular verticals, so the angle and language fit the industry - or set to cover all of them, current and future.
  • Conditions. A play can carry rules that decide whether it should run for a given contact at all, based on what qualification and research found - so the right contacts get the right play rather than everyone getting everything.

This scoping is what lets one play stay sharp across a whole list: the agent isn’t writing one generic message, it’s writing the version that fits the persona, the industry, and the moment.

Writing the play itself, with the agent’s help

Section titled “Writing the play itself, with the agent’s help”

The instructions that shape a play - the angle, the structure, the value proposition to lean on - can be drafted by the same intelligence that writes the outreach. You can start a play from scratch, duplicate one that already works, begin from a template, or have the agent draft the instructions for you from the research agents you point it at and a short brief of what you want. Either way the play is yours to edit before you run it. The step-by-step is in Generate plays and a digital twin.

How a sales team gets value from it

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  • Reps send better first touches without the writing time. The opener already references something real about the account, so the rep isn’t starting from a blank page or a generic template.
  • Quality stays consistent across the whole team. A new rep’s first email reads like research-backed outreach from day one, not like a rookie’s guess. That consistency is part of why ramp time shortens.
  • The message matches the motion. A cold email and a cold-call track are different formats with different rhythms. Choosing the right kind of play gives you copy shaped for where it’s going to be used, and a multi-step sequence keeps each touch building on the last instead of repeating.
  • It’s the natural last step of a play. In most playbooks, Play Copywriting runs after the account is qualified and researched and the right contact is found and studied. By the time it runs, the message has real material to stand on.

In practice

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A signal fires: an account just closed a funding round. Account Research captures the round and what the company is now likely prioritizing. Contact Research studies the VP of the relevant function - their recent posts, how they communicate. Play Copywriting then writes a cold email that opens on the round, ties it to a problem that money tends to expose, and frames the rep’s value proposition against it. The rep reviews it, adjusts a line if they want, and sends. Total rep time: a minute or two, on a message that reads like an hour of work.

Where it fits

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Play Copywriting depends on the research that comes before it - it has nothing specific to say without findings to write from. It pairs most directly with:

  • Account Research - supplies the account-level context (funding, hiring, leadership, technology, news).
  • Contact Research - supplies the person-level context (their activity, communication style, what they care about).

It’s the final, customer-facing step of most outreach plays in the playbooks library, and the messages it writes carry your positioning, so it leans on a well-built value proposition to frame the relevance well.

Eva term-mapping: “play” here means a reusable, configured outreach motion. There are two kinds: a single message (the email format) and a multi-step cold-call track; a single-message play can also carry a subject line. A play can be a one-shot message or a multi-step sequence of ordered steps. Cost is billed per run in credits at the effort/speed rate (0.5-3 credits per run; see Effort and speed costs) - not a flat per-play fee. Credits, not seat licenses, and this agent like all of them is available on every tier. If a customer asks about a LinkedIn-message play, that is not a current play type - the two types are email and cold-call track.

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