sessfind: Instructions file for Codex

AGENTS.md

sessfind AGENTS.md is an instructions file for Codex, OpenCode from letsdev-it/sessfind. It costs 811 tokens per session, scanned A, original, MIT.

Contribution instructions for sessfind, with its product specification and software design documents treated as the source of truth. They explain how feature, bug, and maintenance work should move from specification to implementation.

In plain words
What is it for?
Use them when planning or implementing sessfind features, bugs, and architecture changes, including creating the right issue type, updating technical specifications, and linking pull requests.
Why use it?
They prevent code from adding behavior that the product specification does not define and provide a route for resolving unclear product decisions. They also require pull requests to reference their tracked task.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md.

This is letsdev-it/sessfind's own configuration. It tells Codex and OpenCode how to work on sessfind 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 sessfind configures →

Reuse

Borrowing it

Nothing to install: this file belongs to letsdev-it/sessfind. 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/letsdev-it/sessfind/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/letsdev-it/sessfind

Made for: Codex, OpenCode.

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 sessfind AGENTS.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/letsdev-it/sessfind/agents-md/github.svg)](https://agentmods.dev/instructions/letsdev-it/sessfind/agents-md)
Your own site
<a href="https://agentmods.dev/instructions/letsdev-it/sessfind/agents-md"><img src="https://agentmods.dev/badge/instructions/letsdev-it/sessfind/agents-md/github.svg" alt="Measured on agentmods" height="20"></a>

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.

agentmods 80×15 button for sessfind AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/letsdev-it/sessfind/agents-md"><img src="https://agentmods.dev/badge/instructions/letsdev-it/sessfind/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 811 This file is loaded in full into every session.
When invoked 811 The same file — it is already loaded in full.
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 $0.00811 $0.00811
Opus 5.5 $0.00324 $0.00324
Sonnet 5.5 $0.00162 $0.00162
Haiku 4.5 $0.00081 $0.00081

Measured 1mo ago against content hash ced9f013f3b0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

sessfind AGENTS.md 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 1mo 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.md · 91 lines

How it starts

The opening of the file, as written. The whole thing — 91 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Guidelines for AI assistants and contributors

Product specification and SDD

The product contract for sessfind lives in the letsdev-it/sdd-specs repository. Treat the current product spec as authoritative for observable behavior.

  • Contract changes start as spec-feature or spec-chore issues in the spec repository and are implemented only after the resulting code task exists.
  • Bugs and maintenance work start as code-bug or code-chore issues in the spec repository.
  • Every pull request must close or reference its generated sdd:task issue.
  • Do not introduce observable behavior that is absent from, or contradicts, the current product spec. Route contract changes through the spec first.
  • Update the relevant technical-spec document under spec/ in the same pull request when the implementation architecture or conventions change.

Product clarification

When implementation discovers a missing or ambiguous product decision, do not invent behavior in code. Add this comment to the open sdd:task issue in this code repository (not to the PR and not directly to the spec repo):

/sdd clarify <focused product question>

Valid product questions include:

/sdd clarify Should sessions without a project be included in an unfiltered list?
/sdd clarify What should the CLI display when a stored session source is no longer installed?
/sdd clarify Should deleting an indexed source also remove its cached semantic data?

Do not use clarification for implementation choices:

/sdd clarify Should this use an enum or a trait object?
/sdd clarify Which Rust crate should implement date parsing?
/sdd clarify How should this module be split?

Those are technical decisions owned by this repository and may be recorded in its technical spec or an implementation ADR. Clarification keeps the existing task and branch, marks the task sdd:blocked-product, and creates a focused draft spec PR. Resume after the product decision is merged and an approved update operation removes the blocked label.

Read the full file on GitHub · 91 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. 1mo ago First seen · 91 lines · 811 tokens per session scan A ced9f013f3b0

Subscribe to this mod's changes

sessfind AGENTS.md is an instructions file published in the GitHub repository letsdev-it/sessfind (24 stars, last pushed 3mo ago), licensed MIT. It adds 811 tokens to every session, about $0.0032 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 2026-08-30.

Related

Other instructions, from other repositories