seshat: Instructions file for Codex

AGENTS.md

seshat AGENTS.md is an instructions file for Codex, OpenCode from KPO-Tech/seshat. It costs 1,704 tokens per session, scanned A, original, Apache-2.0.

Repository instructions for Seshat, an open-source Go runtime for AI agents. They describe its command-line, gRPC server, and Go SDK entry points, along with required build, test, formatting, and branching practices.

In plain words
What is it for?
Building, testing, formatting, linting, and contributing changes to the Seshat Go repository while respecting its package boundaries and branch strategy.
Why use it?
They make the project’s quality checks and branch structure explicit before code is changed. This helps prevent skipped tests, disabled checks, or changes in the wrong branch.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions Claude Code; mentions Codex.

This is KPO-Tech/seshat's own configuration. It tells Codex and OpenCode how to work on seshat 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 seshat configures →

Reuse

Borrowing it

Nothing to install: this file belongs to KPO-Tech/seshat. 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/KPO-Tech/seshat/main/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/KPO-Tech/seshat

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 seshat AGENTS.md

README.md
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Your own site
<a href="https://agentmods.dev/instructions/kpo-tech/seshat/agents-md"><img src="https://agentmods.dev/badge/instructions/kpo-tech/seshat/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 seshat AGENTS.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/kpo-tech/seshat/agents-md"><img src="https://agentmods.dev/badge/instructions/kpo-tech/seshat/agents-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,704 This file is loaded in full into every session.
When invoked 1,704 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 $0.01704 $0.01704
Opus 5.5 $0.00682 $0.00682
Sonnet 5.5 $0.00341 $0.00341
Haiku 4.5 $0.00170 $0.00170

Measured 26d ago against content hash 57d1610600d2, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

seshat 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 26d 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 · 145 lines

How it starts

The opening of the file, as written. The whole thing — 145 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Agent Instructions — Seshat

This file provides guidance for AI agents (Seshat, Claude Code, Codex, or similar) working on this repository. Read it before making any changes.


Project overview

seshat is an open-source Go AI agent runtime. It has no concept of users, organizations, or billing — those live in the products built on top of it: SeshatOS (local) and SeshatCloud (multi-tenant), both separate repositories. The engine exposes three entry points: cmd/cli (terminal), cmd/grpc (gRPC server), and pkg/sdk (Go SDK for embedding).


Known bugs to fix first

TODO.md lists errors found by reading the code: behavior that is wrong, security gaps, and features that exist but are never connected. Read it before touching compaction, hooks, runtime events, project instructions or the auto-mode classifier, and do not build on top of an item that is listed there without fixing or noting it.


Build and test

Always run these before finishing:

go build ./...          # must pass — no exceptions
go vet ./...            # must pass — no exceptions
go test -race ./...     # must pass — fix failures, do not skip
golangci-lint run ./... # pass or explain why an existing violation is pre-existing
gofmt -w .              # always run after editing Go files

If go test fails, investigate and fix the root cause. Do not disable tests or add t.Skip() to work around failures.


Branching strategy

main        production-ready, tagged releases only
  └── dev   stable integration — all work lands here first via PR
        └── <type>/<slug>   one branch per issue
  • Always branch off dev.
  • Never commit or push directly to main.
  • Never commit or push directly to dev.
  • All work must land through a PR: <type>/* → dev, then dev → main.
  • PRs target dev. The only allowed PR into main is dev → main for final validation by maintainers.
  • Direct PRs from topic branches into main must be closed without merge.
  • The Gate CI check (Build + Test + Lint) must be green before any PR can merge.
  • Name branches <type>/<short-slug> where <type> is one of feat, fix, docs, refactor, test, chore, perf, or ci.

Read the full file on GitHub · 145 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. 26d ago Changed · +6 lines · +79 tokens per session 57d1610600d2
  2. 1mo ago Changed · +1 lines · +29 tokens per session 9a22a574d2f4
  3. 1mo ago Changed · +171 tokens per session f893f771a4a3
  4. 2mo ago First seen · 138 lines · 1,425 tokens per session scan A bafff005c3f8

Subscribe to this mod's changes

seshat AGENTS.md is an instructions file published in the GitHub repository KPO-Tech/seshat (5 stars, last pushed 26d ago), licensed Apache-2.0. It adds 1,704 tokens to every session, about $0.0068 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 2026-08-31.

Related

seshat AGENTS.md compared with instructions from other repositories

seshat AGENTS.md next to 6 instructions from other repositories
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seshat AGENTS.mdKPO-Tech/seshatInstructions file526d agoApache-2.0A1,704Codex, OpenCode
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deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file274k2d agoMITA4,313Codex, OpenCode