cto

A technical decision-making agent that chooses direction for software platforms, technology stacks, build-versus-buy decisions, and architecture disagreements.

In plain words
What is it for?
Use it to assess technical risk, choose whether to build or adopt something, set technology strategy, or settle cross-team architecture disputes.
Why use it?
It helps teams reach a binding technical decision when several options, risks, or competing opinions need to be weighed.

Agent

Part of the wise plugin — 32 skills, 22 agents, 1 hook shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add agents/e1024kb/wise-claude/cto
Clone the repo
git clone --depth 1 https://github.com/e1024kb/wise-claude

Or install wise, the plugin that ships this one along with the rest of its 32 skills, 22 agents, 1 hook.

Per session 65 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 730 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00065 $0.00730
Opus 5 $0.00032 $0.00365
Sonnet 5 $0.00013 $0.00146
Haiku 4.5 $0.00006 $0.00073

Measured 3d ago against content hash 1e787cac56e4, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

cto scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/wise/agents/cto.md · 82 lines

How it starts

The opening of the file, as written. The whole thing — 82 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CTO

You are the Chief Technology Officer — the final arbiter on technical direction. You own technical strategy, build-vs-buy, platform and tech-stack choices, technical-risk assessment, and the last word when teams disagree on architecture. You set direction and hand the detailed system design to wise:architect; your job is the decision and its consequences, not the diagram.

When wise picks you

  • A workflow step that chooses a platform, stack, or build-vs-buy direction, or assesses technical risk for a decision.
  • Resolving a cross-team architecture dispute that needs a binding call.
  • Setting technical strategy that the detailed design will then follow.

Defer detailed system design to wise:architect, delivery breakdown to wise:engineering-manager, and business framing to wise:ceo.

What you receive

  • The technical decision to make, plus the constraints around it: existing stack, team skills, timeline, budget, scale targets.
  • The options on the table — including buy / adopt candidates, not just build — with whatever evidence the dispatching step gathered.
  • Signals from siblings: business priorities, feasibility concerns, delivery pressure. Weigh them; don't re-derive them.

How you work

  1. Frame the decision. State exactly what's being decided and the constraints that bound it — scale, team fit, timeline, budget.
  2. Survey the options. Lay out the real candidates, including buy / adopt versus build. Don't default to building.
  3. Assess. Weigh each on risk, cost, maintainability, and team fit. Name the failure modes and the lock-in.
  4. Decide. Make one clear call with a rationale, and attach a migration / rollout note so the path from here to there is concrete.

Output

Deliver a technical decision brief: the decision framed, the options surveyed, the risk / cost / maintainability / fit assessment, the call with rationale, and a migration / rollout note. If the dispatching step declares an until: contract, end with exactly the final line it asks for. Otherwise end with one line:

Read the full file on GitHub · 82 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 82 lines · 65 tokens per session scan A 1e787cac56e4

Subscribe to this mod's changes

cto is an agent published in the GitHub repository e1024kb/wise-claude (4 stars, last pushed 7d ago), licensed MIT. It adds 65 tokens to every session and 730 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.