Add psortb tool: image built, handoff issue #3 opened

PSORTb wraps brinkmanlab/psortb_commandline:1.0.2. No refdata
needed (SCL models bundled in base image), so the handoff is
image-registration-only.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: jplfaria

README.md

@@ -51,10 +51,10 @@ Status legend:
 | mmseqs2 | [cdm_mmseqs2](https://github.com/kbaseincubator/cdm_mmseqs2) | `0.1.0` | no | Live, importer pending merge ([PR #35](https://github.com/kbase/cdm-spark-events-importers/pull/35)) |
 | kofamscan | [cdm_kofamscan](https://github.com/kbaseincubator/cdm_kofamscan) | `0.1.0` | KEGG HMMs (~1.5GB bundled, staged at `cts/io/jplfaria/refdata_staging/kofam/`) | Awaiting registration |
 | bakta | [cdm_bakta](https://github.com/kbaseincubator/cdm_bakta) | `0.1.0` | Bakta DB v6 full (~30GB bundled, staged at `cts/io/jplfaria/refdata_staging/bakta/`) | Awaiting registration |
+| psortb | [cdm_psortb](https://github.com/kbaseincubator/cdm_psortb) | `0.1.0` | none (bundled in image) | Awaiting registration |
 | gtdbtk | — | — | ~100GB taxonomy DB | Planned |
 | eggNOG | — | — | eggNOG DB | Planned |
 | RAST | — | — | none | Planned (custom container, needs upstream coordination) |
-| psortb | — | — | none | Planned |
 | transyt | — | — | none | Planned (custom container) |
 | modelseedpy | — | — | none | Planned (custom container from upstream maintainer) |
 | skani | — | — | optional (refdata for query mode only) | Planned (deferred per scientific priorities) |
@@ -82,5 +82,6 @@ Tracked as GitHub issues with task list checkboxes the CTS admin ticks off as ea
 Currently open:
 - [#1 cdm_kofamscan](https://github.com/kbaseincubator/cdm_tool_skeleton/issues/1) ([template](handoffs/kofamscan.md))
 - [#2 cdm_bakta](https://github.com/kbaseincubator/cdm_tool_skeleton/issues/2) ([template](handoffs/bakta.md))
+- [#3 cdm_psortb](https://github.com/kbaseincubator/cdm_tool_skeleton/issues/3) ([template](handoffs/psortb.md))
 
 Refdata path convention: `cts-refdata/{toolname}/{refdata_version}/{filename}`. The path version is the **refdata version**, not the tool version. See [`handoffs/README.md`](handoffs/README.md) for full conventions and process for adding new handoffs.

handoffs/README.md

@@ -13,6 +13,7 @@ To request a registration: open a new issue from the template below, ping the CT
 |------|-------|----------|
 | kofamscan | [#1](https://github.com/kbaseincubator/cdm_tool_skeleton/issues/1) | [kofamscan.md](kofamscan.md) |
 | bakta | [#2](https://github.com/kbaseincubator/cdm_tool_skeleton/issues/2) | [bakta.md](bakta.md) |
+| psortb | [#3](https://github.com/kbaseincubator/cdm_tool_skeleton/issues/3) | [psortb.md](psortb.md) |
 
 ## How to add a new handoff
 

handoffs/psortb.md

@@ -0,0 +1,23 @@
+# PSORTb Handoff
+
+**Status:** Open
+**Live issue:** [#3](https://github.com/kbaseincubator/cdm_tool_skeleton/issues/3) (CTS admin ticks checkboxes as steps complete)
+**Sent:** 2026-05-07
+**Completed:** —
+
+## Refdata move + registration
+
+Not applicable. PSORTb's models and SCL databases are bundled inside the base container (`brinkmanlab/psortb_commandline:1.0.2`), so no CTS refdata registration is needed.
+
+## Image registration
+
+- **Image ID:** `ghcr.io/kbaseincubator/cdm_psortb:0.1.0@sha256:92bb6db4799b25a75e4738d01f384b512b1c45092ee6c5a487eefa477c455888`
+- **Entrypoint:** `/usr/local/psortb/bin/psort`
+- **Default refdata mount point:** none
+- **Usage note:** Pass an organism flag (`--positive`, `--negative`, or `--archaea`), an output format flag (`--output terse|normal|long`), and the input protein FASTA. Models are bundled in the image.
+- **Repo:** https://github.com/kbaseincubator/cdm_psortb
+
+## Confirmation (fill in when CTS admin completes)
+
+- Image registered: no
+- Notes: No refdata; this is a single-step image registration only.