---
name: cto-hiring-evidence-and-search
description: Use this skill when the user wants to run a structured, evidence-based CTO (or comparable technology-executive) search - building a weighted scorecard, interview guides, a work-sample case, a reference plan, an evidence summary per candidate, and a stated hiring-bet recommendation with its reasoning. Triggers on requests like "help us build a CTO hiring scorecard," "design interview questions for our CTO candidates," "organize our reference-check evidence," "write a hiring-bet memo for this candidate," or "set up our CTO search process." States which candidate the evidence best supports and why, or names the case as genuinely tied between finalists; the named decision owner still holds final hiring authority.
---

# Run an Evidence-Based CTO Search
This skill is Labor as Code™ for "Build the Search and the Candidate
Pool" and "Interview, Verify, and Decide," the two search-and-selection
chapters of *The CTO You Actually Need*. Read those chapters for the
reasoning - this skill only executes the mechanics of turning a mandate
into a consistent, evidence-driven search. It requires a finished
mandate and scorecard skeleton as input; if the user has not yet defined
what the CTO role actually is, run the `cto-mandate-and-decision-rights`
skill first; this skill does not invent a mandate of its own.

**This is the load-bearing rule for this whole skill: every output
traces to cited evidence, and the final output states a recommendation
with its reasoning.** The scorecard, the interview guides, the evidence
summaries, and the reference synthesis all lay out what the evidence
shows, what it does not show, and what questions remain open - that
groundwork is what makes the recommendation earned rather than
guessed. The hiring-bet memo then closes the loop: state which
candidate the evidence best supports, or, where two finalists are
genuinely close, say so and lay out both cases side by side rather than
forcing a single name past what the evidence bears. Either way, name
the decision owner (see below) as the person who makes it final - this
skill's recommendation is a considered lean, built from evidence with
its reasoning shown, not the hiring decision itself. Never round mixed
or thin evidence up into unwarranted confidence in one candidate; say
plainly when the evidence doesn't yet support a lean at all.

## Before running

Confirm with the user, in plain conversation, before drafting anything:

1. **The mandate exists.** This skill needs the finished mandate and
   outcome-linked scorecard skeleton (from `cto-mandate-and-decision-rights`
   or equivalent). A scorecard built without a mandate behind it just
   measures whatever the interviewers already prefer.
2. **Who the decision owner is.** One named person owns the hiring
   decision (usually the CEO, unit president, or board, depending on
   governance). This skill can support a hiring committee's process,
   but never substitutes for that named owner, and should not be asked
   to.
3. **What candidate material may go into an AI tool.** The book is
   explicit: no confidential source code, security findings, personal
   candidate information, medical information, protected financial
   information, or legally privileged material without organizational
   approval. Confirm with the user what may be pasted in versus what
   must stay out, and default to anonymized candidate IDs rather than
   names throughout.
4. **Legal/HR review is separate from this skill.** Interview design,
   screening criteria, and reference practice need review by the user's
   own HR and legal advisers for lawfulness, consistency, and
   accessibility. This skill drafts material for that review; it is not
   a substitute for it.

## Steps

### 1. Turn the mandate into a weighted scorecard

Choose five to seven criteria tied directly to the mandate's outcomes -
more than seven lets every candidate be justified somewhere. For each
criterion, define:

| Criterion | Weight | Evidence sought | Weak proxy to avoid |
|---|---|---|---|

Weights should reflect the actual mandate (a founding-builder role
weights product/technical creation heavier; an enterprise role weights
influence and federated operating judgment heavier) - ask the user
which outcomes matter most rather than defaulting to an even split or
copying the book's own example weights verbatim.

### 2. Define the evidence scale and use it consistently

Every candidate gets evaluated on the same five-level scale, recorded
explicitly rather than left implicit in an interviewer's impression:

1. **Claim** - candidate says they can do it.
2. **Example** - candidate describes a relevant situation.
3. **Specific evidence** - candidate explains decisions, constraints,
   actions, results, and lessons.
4. **Corroboration** - a reference, artifact, metric, or other
   participant supports the important elements.
5. **Transfer** - the interview team can explain why the evidence
   applies to *this* mandate and what conditions differ.

A rehearsed story can be detailed without being true - detail is not
the same thing as evidence level 3 or above.

### 3. Build interview guides per criterion

For each scorecard criterion, draft a structured evidence interview:

- Two past-work questions to open with (never a hypothetical first).
- A follow-up sequence per question, testing: the business situation,
  what the candidate knew at the time, what remained uncertain, options
  considered, who disagreed and why, what the candidate personally
  decided or influenced, what the organization did, the result, and
  what evidence suggests the candidate's contribution actually
  mattered.
- One scenario question that changes a constraint in three stages (for
  example: "What if the largest customer refuses?" / "What if the CISO
  disagrees?" / "What if the board cuts the budget by 30 percent?") to
  test whether the candidate updates their answer or defends the first
  position.
- A note-taking template that separates **candidate statements**,
  **interviewer observations**, and **unresolved questions** into three
  distinct columns - this separation is what keeps a later evidence
  summary honest.

Assign each criterion a primary interviewer and, where possible, a
second source of evidence (a peer, a work sample, a reference), rather
than one interviewer covering everything.

### 4. Design a work-sample case, if the mandate calls for one

If the user wants a work sample, build it around a decision the CTO is
likely to face *repeatedly* in this company, not the company's actual
live problem (do not ask a candidate to solve something the company
intends to use). Include:

- A two-page candidate brief with known facts and explicit gaps -
  reward candidates for identifying what they need to know, not for
  guessing confidently.
- Three new facts or constraint changes to introduce mid-discussion.
- Named participants who will voice real, non-caricatured objections
  (product, finance, security, engineering - whoever the mandate
  actually involves).
- A bounded time commitment (60-90 minutes plus a short pre-read is
  usually enough); flag to the user if the design is asking for several
  hours of free work, and note that paid, bounded alternatives exist.
- An evidence rubric scoring framing, questions asked, tradeoffs
  surfaced, technical contact, decision ownership versus delegation,
  communication, and whether the candidate updates their view when a
  constraint changes.

### 5. Build the reference plan from evidence gaps, not a supporter list

At the end of interviews, list (with the user, from actual interview
notes):

- Claims essential to the mandate.
- Conditions that made the candidate successful elsewhere.
- Failures or conflicts that need more context.
- Leadership transitions the candidate says they managed.
- Areas where evidence is still thin.

Turn each into a specific reference question, matched to the reference
relationship best able to answer it (manager, peer, direct report,
product partner, customer, board member, successor - not just whoever
the candidate offers first). Ask for observed behavior, authority, and
result, not a character reference. Record the conditions surrounding
each favorable reference (strong VP Engineering already in place,
abundant capital, board air cover, mature platform) so the user can
judge whether those conditions exist at their own company.

### 6. Organize evidence per candidate, without concluding

For each candidate (by anonymized ID), produce an evidence summary
organized into exactly these four categories, sourced only from
supplied evidence:

- **Demonstrated strength**
- **Acceptable with support**
- **Unresolved risk**
- **Critical failure**

Label every inference as inference, distinct from cited evidence. Do
**not** total a numeric score - the five-level evidence scale and the
four-category summary are not additive, and collapsing them into one
number hides exactly the distinctions (claim versus corroboration,
demonstrated strength versus acceptable-with-support) that make the
evidence worth reading. Once every candidate's summary is built, add a
short cross-candidate synthesis: which candidate's evidence is
strongest against the mandate's own weighted criteria, where the gap
between candidates is real versus where it's an artifact of uneven
interview coverage, and whether any candidate has a critical failure
that should remove them from contention regardless of other strengths.

### 7. Draft the hiring-bet memo, filled in with the best-supported case

For each serious finalist, draft the book's own hiring-bet template as
the strongest honest case *for* that candidate and the strongest
honest case *against* them, using this shape:

```
We are choosing [candidate] because we believe [evidence-backed
strengths] will produce [mandate outcomes] in our conditions. The
reasonable alternative to this hire is [alternative], and we expect
this appointment to outperform it by [observable result]. The main
risks are [risks]. We will reduce them through [support, authority,
checkpoints, or evidence]. We would change our view if [signals].
```

Then close with a filled-in recommendation paragraph: name the
candidate the evidence best supports, cite the specific evidence
(level 3 or above) that carries the most weight against the mandate's
weighted criteria, and state plainly what would change the
recommendation. Where two finalists are genuinely close on the actual
evidence - not just on how each interviewer felt - present both
filled-in cases as live options rather than picking one to satisfy the
template, and say explicitly what additional evidence (a specific
reference, a specific work-sample follow-up) would resolve the tie.
The decision owner reads a stated recommendation with its reasoning
shown, not a blank to fill in themselves - but the memo's own line
still holds as the check on the reasoning: if the case for a
candidate can't be written honestly from the cited evidence, that is
itself the finding, and the recommendation should say so rather than
assert a preference the evidence doesn't support. The named decision
owner makes the hire; this skill's job stops at giving them the
best-reasoned recommendation the evidence supports.

## Organizing the output

Hand the user back, clearly separated:

1. **Weighted scorecard** (criteria, weights, evidence sought, weak
   proxies).
2. **Interview guide set**, one per criterion, with the note-taking
   template.
3. **Work-sample packet**, if built, with its evidence rubric.
4. **Reference plan**, mapped from evidence gaps to specific questions
   and reference relationships.
5. **Per-candidate evidence summaries** (four categories, plus the
   cross-candidate synthesis from Step 6).
6. **Hiring-bet memo** per finalist (for-case and against-case), with a
   filled-in recommendation naming the best-supported candidate and its
   reasoning - or, where the evidence is genuinely tied, both cases
   presented as live options with what would resolve the tie.

## What this skill does not do - check before calling it done

Before telling the user this is finished, reread every output and
confirm none of it:

- States a recommendation the cited evidence doesn't actually support -
  every claim behind the recommendation traces to a specific piece of
  evidence at level 3 or above, not to interviewer impression.
- Makes the hiring decision itself, or implies the decision owner's
  sign-off is a formality - the recommendation is a considered lean for
  the named decision owner to accept, question, or override, not a
  fait accompli.
- Infers a candidate's identity, personality, suitability, or protected
  characteristics from a name, photo, school, or writing style.
- Treats "mixed feedback" from references as resolved by averaging -
  conflicting reference accounts stay conflicting, with the conditions
  behind each named and factored into the recommendation's reasoning,
  not smoothed into a false consensus.

If any output crosses one of these lines, the fix is the same every
time: cut the claim that outruns the evidence, and either replace it
with what the evidence actually supports or say plainly that the
evidence doesn't yet support a lean.
