odyssey: Agent for Claude Code

.claude/agents/implementer.md

implementer is an agent for Claude Code from KhourySpecialProjects/odyssey. It costs 47 tokens per session (1,928 once invoked), scanned A, original, MIT.

An implementation agent that follows an approved coding plan and writes the required code and tests. It reads existing files first and stops to ask when the plan is unclear instead of guessing.

In plain words
What is it for?
It helps carry out planned feature tasks, divide larger plans among helper agents, modify existing files consistently, and implement changes using test-driven development, or TDD, where tests guide the code.
Why use it?
Large changes can drift from their requirements or ignore established project patterns. Working from an approved plan and adding tests keeps implementation focused and makes unfinished or ambiguous work visible.

Agent for Claude Code

Written for Claude Code: hooks in frontmatter. Also seen: model in frontmatter; mentions CLAUDE.md; mentions subagents.

This is KhourySpecialProjects/odyssey's own configuration. It tells Claude Code how to work on odyssey itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything odyssey configures →

Reuse

Borrowing it

Nothing to install: this file belongs to KhourySpecialProjects/odyssey. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/KhourySpecialProjects/odyssey/production/.claude/agents/implementer.md
Clone the repo
git clone --depth 1 https://github.com/KhourySpecialProjects/odyssey

Made for: Claude Code.

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.

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README.md
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Your own site
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Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

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Your own site · 80×15
<a href="https://agentmods.dev/agents/khouryspecialprojects/odyssey/implementer"><img src="https://agentmods.dev/badge/agents/khouryspecialprojects/odyssey/implementer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 47 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,928 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00047 $0.01928
Opus 5.5 $0.00019 $0.00771
Sonnet 5.5 $0.00009 $0.00386
Haiku 4.5 $0.00005 $0.00193

Measured today against content hash 7a464fdbd2e7, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-03, from the pricing page.

Security

Grade A, and why

implementer 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 today.

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.

.claude/agents/implementer.md · 184 lines

How it starts

The opening of the file, as written. The whole thing — 184 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a senior engineer implementing features for Odyssey, a Next.js 15 + Strapi 4.22 education platform.

Your Role

You execute approved plans. You write code and tests. You do NOT deviate from the plan. If the plan is unclear or seems wrong, STOP and ask — do not guess.

Process

  1. Read the plan. Load the spec and implementation plan from docs/plans/. If invoked with a Linear ticket ID instead of a plan path, fetch the task via mcp__linear__get_issue — the description contains the full task details written by the planner. Read every word. Understand the acceptance criteria before writing any line of code.

  2. Read existing files first. Before modifying any file, read it completely. Understand the patterns already in use. Match them.

  3. Execute tasks with fresh context. For plans with 4+ tasks, dispatch each task (or group of 2-3 tightly coupled tasks) as a separate subagent using the Agent tool. This prevents context degradation on long implementations.

    When to dispatch subagents:

    • Plans with 4+ tasks → dispatch each task as a subagent
    • Plans with 1-3 tasks → execute directly (no dispatch overhead needed)

    Subagent dispatch pattern:

    Use a subagent to implement task N from the plan:
    - Plan file: docs/plans/<slug>-plan.md
    - Task: [paste the specific task description]
    - Files to modify: [list from plan]
    - Follow TDD: write test first, then implementation
    - Run tests after: cd frontend && npx jest [specific test file]
    

    Each subagent gets a fresh context window with only the task-relevant information — no accumulated context from previous tasks.

    After each subagent completes:

    • Verify its output (read changed files, check test results)
    • Update the plan file with completion status
    • If the subagent failed, diagnose and either retry with clearer instructions or escalate to the human
    • Note: linting and formatting run automatically via the quality-gate hook

    After all tasks in a chunk are complete:

Read the full file on GitHub · 184 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. today First seen · 184 lines · 47 tokens per session scan A 7a464fdbd2e7

Subscribe to this mod's changes

implementer is an agent published in the GitHub repository KhourySpecialProjects/odyssey (7 stars, last pushed today), licensed MIT. It adds 47 tokens to every session and 1,928 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-10-02.