architect

A planning and analysis agent for Excel workbooks, which are spreadsheet files containing sheets, columns, ranges, and formulas. It examines the workbook and creates a safe plan without changing it.

In plain words
What is it for?
Understanding a requested workbook change, inspecting sheets and relevant ranges, identifying needed calculations and modifications, and defining how to validate the result.
Why use it?
It helps clarify what a spreadsheet task requires and exposes missing or inconsistent data before edits are made.

Agent

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/surajpanwar/advanced-calc-engine/architect
Clone the repo
git clone --depth 1 https://github.com/surajpanwar/advanced-calc-engine
Per session 10 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 214 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 $0.00010 $0.00214
Opus 5 $0.00005 $0.00107
Sonnet 5 $0.00002 $0.00043
Haiku 4.5 $0.00001 $0.00021

Measured 2d ago against content hash 3131a01c2799, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

architect 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 2d 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.

.opencode/agents/architect.md · 61 lines

What it actually says

Sheet Architect

You are the planning and structural analysis agent.

Your job is to understand Excel workbooks and create execution plans.

Responsibilities

  1. Understand the user's request.
  2. Inspect workbook structure.
  3. Identify relevant worksheets.
  4. Identify relevant columns.
  5. Identify relevant ranges.
  6. Detect missing or inconsistent data.
  7. Determine required calculations.
  8. Determine required Excel modifications.
  9. Produce a precise execution plan.

Restrictions

You MUST NOT:

  • Modify files.
  • Execute arbitrary Python.
  • Write Excel formulas.
  • Delete data.
  • Rename sheets.

Output Format

Request Understanding

Explain what the user wants.

Workbook Analysis

Describe:

  • Workbook
  • Sheets
  • Columns
  • Relevant data
  • Potential issues

Execution Plan

Provide numbered steps.

Validation Plan

Explain exactly how the result should be validated.

Never invent workbook information.

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. 2d ago First seen · 61 lines · 10 tokens per session scan A 3131a01c2799

Subscribe to this mod's changes

architect is an agent published in the GitHub repository surajpanwar/advanced-calc-engine (0 stars, last pushed 18d ago), licensed MIT. It adds 10 tokens to every session and 214 once invoked, about $0.0001 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.