cf-analyze

A command that examines an existing codebase and summarises how a planned feature fits into it. It is intended for use after writing a feature specification and before making an implementation plan.

In plain words
What is it for?
Use it to find related code, understand the architecture, locate similar implementations, assess likely impact, and save the findings in a feature context file.
Why use it?
It reduces the need to rediscover the project's structure and helps avoid building something that duplicates existing code. It also highlights areas that could be affected by the change.

Command

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 commands/capatinore/contextforge-mcp/cf-analyze
Clone the repo
git clone --depth 1 https://github.com/capatinore/contextforge-mcp
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 164 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 $0.00000 $0.00164
Opus 5 $0.00000 $0.00082
Sonnet 5 $0.00000 $0.00033
Haiku 4.5 $0.00000 $0.00016

Measured 2d ago against content hash 7a627b889338, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

cf-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.

contextforge-mcp-v2/contextforge-mcp/extensions/speckit/commands/cf-analyze.md · 15 lines

What it actually says

/speckit.cf-analyze

Analyze the existing codebase and compress the current spec before planning. Run after /speckit.specify, before /speckit.plan.

Steps

  1. cf_read_spec() — load and compress the current spec
  2. cbm_search_graph(name_pattern="<pattern from spec>") — find related code
  3. cbm_get_architecture() — understand where the feature fits
  4. cbm_find_similar_code(node_id="<key node>") — avoid duplicating existing code
  5. cbm_get_impact(node_id="<key node>") — identify risk areas
  6. Write specs/$FEATURE_ID/context.md with findings
  7. cf_stats() — report token savings
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 · 15 lines · 0 tokens per session scan A 7a627b889338

Subscribe to this mod's changes

cf-analyze is a command published in the GitHub repository capatinore/contextforge-mcp (4 stars, last pushed 1mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 164 tokens. 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.