fic-validate-plan

fic-validate-plan is a command for Codex from saski/arnesto. It costs 0 tokens per session (746 once invoked), scanned A, original, Unlicense.

A command that checks whether an implementation plan was actually completed. It compares the plan’s requirements with code changes, commits, automated checks, and manual verification steps.

In plain words
What is it for?
Use it to validate a specified plan or the latest plan, inspect recent changes, run its checks, verify each phase, and identify edge cases or manual tests still needed.
Why use it?
A plan can be marked finished even when code, tests, or success criteria are missing. This command provides a systematic way to find gaps and investigate failures.

Command for Codex

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/saski/arnesto/fic-validate-plan
Clone the repo
git clone --depth 1 https://github.com/saski/arnesto

Made for: Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for fic-validate-plan

README.md
[![agentmods](https://agentmods.dev/badge/commands/saski/arnesto/fic-validate-plan.svg)](https://agentmods.dev/commands/saski/arnesto/fic-validate-plan)
Your own site
<a href="https://agentmods.dev/commands/saski/arnesto/fic-validate-plan"><img src="https://agentmods.dev/badge/commands/saski/arnesto/fic-validate-plan.svg" alt="Measured on agentmods" height="20"></a>
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 746 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 $0.00746
Opus 5 $0.00000 $0.00373
Sonnet 5 $0.00000 $0.00149
Haiku 4.5 $0.00000 $0.00075

Measured 3d ago against content hash 4214da7d8e9e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

fic-validate-plan 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.

.agents/commands/fic-validate-plan.md · 137 lines

How it starts

The opening of the file, as written. The whole thing — 137 lines — stays where its author put it; the contents beside it link to each section on GitHub.

FIC Validate Plan - Verify Implementation Completeness

Act as a Senior XP Developer validating that an implementation plan was correctly executed.

Task

Plan Path: $ARGUMENTS

If no path provided, search recent thoughts/shared/plans/ for the latest plan.

Validation Process

Step 1: Context Discovery
  1. Read the implementation plan completely

  2. Identify what should have changed

    • List all files that should be modified
    • Note all success criteria
    • Identify key functionality to verify
  3. Gather implementation evidence

    # Check recent commits
    git log --oneline -n 20
    
    # Check what changed
    git diff HEAD~5..HEAD --stat
    
    # Run comprehensive checks
    make check test
    
Step 2: Systematic Validation

For each phase in the plan:

  1. Check completion status

    • Look for checkmarks in plan (- [x])
    • Verify actual code matches claimed completion
  2. Run automated verification

    • Execute each command from success criteria
    • Document pass/fail status
    • Investigate any failures
  3. Assess manual criteria

    • List what needs manual testing
    • Provide clear steps for verification
  4. Think about edge cases

    • Were error conditions handled?
    • Are there missing validations?
    • Could this break existing functionality?
Step 3: Generate Validation Report
## Validation Report: [Plan Name]

### Implementation Status
✓ Phase 1: [Name] - Fully implemented
✓ Phase 2: [Name] - Fully implemented
⚠️ Phase 3: [Name] - Partially implemented (see issues)

### Automated Verification Results
✓ Build passes: `make build`
✓ Tests pass: `make test`
✗ Linting issues: `make lint` (3 warnings)

### Code Review Findings

#### Matches Plan:
- Database migration correctly adds [table]
- API endpoints implement specified methods
- Error handling follows plan

#### Deviations from Plan:
- Used different variable names in [file:line]
- Added extra validation in [file:line] (improvement)

#### Potential Issues:
- Missing index on foreign key
- No rollback handling in migration

### Manual Testing Required:
1. UI functionality:
   - [ ] Verify [feature] appears correctly
   - [ ] Test error states

2. Integration:
   - [ ] Confirm works with existing [component]
   - [ ] Check performance with large datasets

### Recommendations:
- Address linting warnings before merge
- Consider adding integration test for [scenario]
- Document new API endpoints

Read the full file on GitHub · 137 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 · 137 lines · 0 tokens per session scan A 4214da7d8e9e

Subscribe to this mod's changes

fic-validate-plan is a command published in the GitHub repository saski/arnesto (5 stars, last pushed 7d ago), licensed Unlicense. It costs nothing until one of its globs matches a file; then it loads 746 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.