miller/pkg
John Kerl 41f5188bd0
Add mlr mcp MCP server + agent playbook, with a --no-shell gate (#2098 PR7) (#2133)
* Plan: flesh out PR7 (MCP server + Agent Skill) design

stdio transport (no HTTP port), mlr mcp terminal in the main binary,
SDK-vs-handroll decision, tool list, in-process vs subprocess split,
run-tool safety (--no-shell prerequisite), single-sourced skill, tests.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* Add mlr mcp: MCP server + agent playbook; --no-shell gate (#2098 PR7)

New terminal `mlr mcp` runs a Model Context Protocol server over stdio
(spawned by MCP clients; no network port), exposing five tools --
list_capabilities, which, validate_dsl, describe_data, run -- plus an
agent playbook as MCP prompt/resource. Catalog tools are served
in-process from the help registries; the rest subprocess this same
binary with MLR_ERRORS_JSON=1, a timeout, and an output cap.

Prerequisite: a new --no-shell flag / MLR_NO_SHELL env var (one-way
gate) disables the DSL system/exec functions, piped redirects, and
--prepipe/--prepipex; the MCP server sets it on the commands it runs
unless started with --allow-shell.

Adds the github.com/modelcontextprotocol/go-sdk dependency.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* Force LF checkout for the embedded SKILL.md (Windows CI fix)

go:embed embeds checkout bytes, so a CRLF checkout on Windows made the
embedded playbook differ per platform and failed
TestPlaybookHasFrontmatter. Pin the file to eol=lf in .gitattributes.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* Move no-shell test DSL into per-case mlr files (Windows CI fix)

Inline single-quoted DSL in cmd files is mangled by the Windows shell
(single quotes are not quote characters there); the harness's
put -f ${CASEDIR}/mlr pattern avoids shell quoting entirely.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-07-03 19:41:49 -04:00
..
auxents Lint round 5+6: staticcheck and errcheck to zero (#2130) 2026-07-03 11:42:08 -04:00
bifs Add mlr mcp MCP server + agent playbook, with a --no-shell gate (#2098 PR7) (#2133) 2026-07-03 19:41:49 -04:00
cli Add mlr mcp MCP server + agent playbook, with a --no-shell gate (#2098 PR7) (#2133) 2026-07-03 19:41:49 -04:00
climain Add DSL validate/dry-run: put/filter --explain (#2098 PR5) (#2131) 2026-07-03 18:12:23 -04:00
colorizer Strip dead code from pkg/ (#2121) 2026-07-01 19:32:13 -04:00
dkvpx Strip dead code from pkg/ (#2121) 2026-07-01 19:32:13 -04:00
dsl Add a first-class bytes type to the DSL, with b"..." literals and base64/hex codecs (#2122) 2026-07-03 11:58:44 -04:00
entrypoint Add mlr mcp MCP server + agent playbook, with a --no-shell gate (#2098 PR7) (#2133) 2026-07-03 19:41:49 -04:00
go-csv Some fixes for staticcheck (#2006) 2026-03-03 09:27:03 -05:00
input Lint round 5+6: staticcheck and errcheck to zero (#2130) 2026-07-03 11:42:08 -04:00
lib Add mlr mcp MCP server + agent playbook, with a --no-shell gate (#2098 PR7) (#2133) 2026-07-03 19:41:49 -04:00
mlrval Add a first-class bytes type to the DSL, with b"..." literals and base64/hex codecs (#2122) 2026-07-03 11:58:44 -04:00
output Add mlr mcp MCP server + agent playbook, with a --no-shell gate (#2098 PR7) (#2133) 2026-07-03 19:41:49 -04:00
parsing Add a first-class bytes type to the DSL, with b"..." literals and base64/hex codecs (#2122) 2026-07-03 11:58:44 -04:00
pbnjay-strptime Performance and style fixes (#1981) 2026-02-18 09:19:31 -05:00
platform Performance and style fixes (#1981) 2026-02-18 09:19:31 -05:00
runtime Lint round 5+6: staticcheck and errcheck to zero (#2130) 2026-07-03 11:42:08 -04:00
scan Strip dead code from pkg/ (#2121) 2026-07-01 19:32:13 -04:00
stream Lint round 5+6: staticcheck and errcheck to zero (#2130) 2026-07-03 11:42:08 -04:00
terminals Add mlr mcp MCP server + agent playbook, with a --no-shell gate (#2098 PR7) (#2133) 2026-07-03 19:41:49 -04:00
transformers Add mlr describe schema/shape introspection verb (#2098 PR6) (#2132) 2026-07-03 18:43:49 -04:00
types Strip dead code from pkg/ (#2121) 2026-07-01 19:32:13 -04:00
version Post-6.19.0 release: back to 6.19.0-dev 2026-06-19 19:34:20 -04:00
README.md Export library code in pkg/ (#1391) 2023-09-10 17:15:13 -04:00

Please see ../../README-dev.md for an overview; please see each subdirectory for details about it.