dbt-analyze

A read-only analysis of how a dbt model’s data flows through other models. dbt is a tool that builds SQL-based data transformations, and downstream models are the ones that depend on them.

In plain words
What is it for?
Use it to find model consumers, inspect parent and child dependencies, trace columns through the dependency graph, or assess a refactoring’s downstream impact.
Why use it?
It shows which models and columns may be affected before a change is released, helping assess the change’s risk and possible breakage.

Skill for Claude CodeCodex

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 skills/altimateai/altimate-code/dbt-analyze
Any agent
npx skills add AltimateAI/altimate-code --skill dbt-analyze
Clone the repo
git clone --depth 1 https://github.com/AltimateAI/altimate-code

Made for: Claude Code, Codex.

Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,036 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 $0.00041 $0.01036
Opus 5 $0.00020 $0.00518
Sonnet 5 $0.00008 $0.00207
Haiku 4.5 $0.00004 $0.00104

Measured 2d ago against content hash a5a1ac6de5e0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

dbt-analyze 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/skills/dbt-analyze/SKILL.md · 131 lines

How it starts

The opening of the file, as written. The whole thing — 131 lines — stays where its author put it; the contents beside it link to each section on GitHub.

dbt Impact Analysis

Requirements

Agent: any (read-only analysis) Tools used: bash (runs altimate-dbt commands), read, glob, dbt_manifest, lineage_check, dbt_lineage, sql_analyze, altimate_core_extract_metadata

When to Use This Skill

Use when the user wants to:

  • Understand what breaks if they change a model
  • Evaluate downstream impact before shipping
  • Find all consumers of a model or column
  • Assess risk of a refactoring

Do NOT use for:

  • Creating or fixing models → use dbt-develop or dbt-troubleshoot
  • Adding tests → use dbt-test

Workflow

1. Identify the Changed Model

Accept from the user, or auto-detect:

# From git diff
git diff --name-only | grep '\.sql$'

# Or user provides a model name
altimate-dbt compile --model <name>    # verify it exists

2. Map the Dependency Graph

altimate-dbt children --model <name>    # direct downstream
altimate-dbt parents --model <name>     # what feeds it

For the full downstream tree, recursively call children on each downstream model.

3. Run Column-Level Lineage

With manifest (preferred): Use dbt_lineage to compute column-level lineage for a dbt model. This reads the manifest.json, extracts compiled SQL and upstream schemas, and traces column flow via the Rust engine. More accurate than raw SQL lineage because it resolves ref() and source() to actual schemas.

dbt_lineage(model: <model_name>)

Without manifest (fallback): Use lineage_check on the raw SQL to understand:

  • Which source columns flow to which output columns
  • Which columns were added, removed, or renamed

Extract structural metadata: Use altimate_core_extract_metadata on the SQL to get tables referenced, columns used, CTEs, subqueries — useful for mapping the full dependency surface.

4. Cross-Reference with Downstream

For each downstream model:

  1. Read its SQL
  2. Check if it references any changed/removed columns
  3. Classify impact:
Classification Meaning Action
BREAKING Removed/renamed column used downstream Must fix before shipping
SAFE Added column, no downstream reference Ship freely
UNKNOWN Can't determine (dynamic SQL, macros) Manual review needed

Read the full file on GitHub · 131 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 131 lines · 41 tokens per session scan A a5a1ac6de5e0

Subscribe to this mod's changes

dbt-analyze is a skill published in the GitHub repository AltimateAI/altimate-code (803 stars, last pushed 2d ago), licensed MIT. It adds 41 tokens to every session and 1,036 once invoked, about $0.0002 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 2026-08-30.

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